Una wey country don tire wey get Nigerian passport check out dis countries u fit enter without Visa dem go dash u wife join.

https://bitcointalk.org/index.php?topic=5284822.msg55464862#msg55464862

The coldcard wallet has a microsd slot, you can create a transaction on a PC, copy it to the microsd, put it in the coldcard and sign it.
You then put the card back in your PC and broadcast the signature. Takes a bit more time then using the USB cable but it does work.

For the ultra paranoid they also make an adapter that lets you run the coldcard from a 9V battery so you never have to plug it into anything.

In terms of keeping a hardware wallet completely airgapped, yes, it is entirely possible by pairing with a wallet such as Electrum. Pair your hardware wallet with Electrum on an airgapped device, export the master public key to an internet enabled device to create a watch only wallet. Create transaction on watch only wallet, transfer to airgapped device via QR code or removable storage, connect hardware wallet to airgapped device to sign transaction, transfer back to watch only wallet, broadcast.

Shamir’s secret sharing for bitcoin is just multisig wallets. I had assumed you meant splitting the private key into N pieces, the following was intended as a response to that:

And congratulations on achieving 500 merit, by the way.

"Cash is becoming worthless" -  is a very strong statement! We are very little compared to the traditional finances in almost all parameters. Be it volume, usability, acceptance and so on...

Una dey see how dem Russians padi dey give merit. No dull am, I 4 yan beta if I sabi talk make them no know, make una soji ara wa now. Not about me but your padi wey dey here.

To make we country Nigeria a better place for we all.. The things wey we need to do, my fellow brothers them don already talk am, and e no make sense make I come dey suggest wetin my brothers don suggests already, but the Question wey me won ask now be say.. How we won take do am?, like to cut cost of governance wey be one of the most important thing wey we must do if we Wan end bad government in Nigeria, how we go take do am to make all this government officials gree say they go cut their own salaries??

Saying that Bitcoin is well adopted is a bit too generous, considering that you can't just go outside and spend it, and you have to specifically look online for the closest places that accept Bitcoin, and then spend potentially a lot of time getting there. And even online it's hard to spend it, because big platforms like ebay or Steam don't accept it.

In no way does Bitcoin solve the problem of theft. Not only it can be stolen physically, if you have a paper wallet, a seed phrase, a digital medium with an unencrypted  wallet file, it can also be stolen digitally via hacks, phishing, malware, etc. For people with poor security practices, which is the majority of the population, Bitcoin theft is a far bigger threat than some bank theft.

One important characteristics of money is that it is generally accepted by every one in the community or society but bitcoin is not yet known by all the people. Bitcoin is still struggling to go to people's accepting it, it is still very volatile and money isn't. I think that we can look bitcoin from area that it is digital currency purpose.

I've never heard about this "Shamir's secret" and I think that all the division and conversion of the seed phrase into different parts sounds a little bit paranoid.

Anyways,It seems to me,that your text is probably some article,which is copy pasted from somewhere.Could you at least mention the author/source?

The first successful form of decentralized money were precious metals,before the time,when the kings and lords monopolized mining and coin production.There were many forms of decentralized money in the prehistoric times-for example some goods like salt were used as money.
Bitcoin is the first successful form of decentralized digital money.

We now get greater problems to solve. Politics has taken over everything in the system and one will be scared of the deteriorating state of the system by the government. The diversity remains challenging and the northern part of the country dont see it the way we see it, they consider the agitation as a treason and justify the ungodly massacre at the Tollgate. The southerners know better that their leaders dont care about them at all, the revelation of the hidden palliative and neglect to the order of the killing speak more

https://www.shutterstock.com/image-photo/bitcoin-laptop-wallet-virtual-currency-gold-1043355598

Introduction
Bitcoin, being the first and the most successful cryptocurrency, has being well adopted in many countries of the world which has reflected through its increasing marketcap and price that also proved it to be a well known deflationary currency. Bitcoin has been increasingly and successfully adopted and proven to not be a ponzi or regulated in any way by any centralized authority, everything about bitcoin is open source and available to the public to the extent bitcoin community are even regarded as the founder of bitcoin, Satoshi Nakamoto. Although, officially, Satoshi Nakamoto is the creator of bitcoin in 2009.

What money is
Many people do not know what money is, like I ones thought money is the first which are acceptable as a means of payment in individual countries, but this is a misconception. Money is anything that has intrinsic value and that can be spent. Good examples of money are bitcoin, other cryptocurrencies  (altcoins), gold and fiats. Among them all, is a money called bitcoin, created in 2009 and has now being greatly accepted and adopted in the world due to its decentralized nature.

Money vulnerable to theft and depreciation until the onset of bitcoin
Before the onset of bitcoin, all types of money were either vulnerable to theft or depreciation, there was a time in the past when there was money but no bank, people will still think of a way to protect their money, but at the time, money were vulnerable to theft. So, later comes bank, to help individual to keep their money, fiats was adopted and was accepted by all countries of the world, and money centralized regulation evolved. Now, fiats are manipulated, the manipulations are from governments because fiats are centrally regulated and due to this, money owned by individuals are manipulated and making fiats to be a depreciative asset. 
Money like gold that are physical are more vulnerable to theft while fiats kept in banks are more vulnerable to governmental manipulations. All these do not make money characteristics to be completely fulfilled until the onset of bitcoin that created indirect bridge known as blockchain between fiats and cryptocurrencies. Now, people can hold bitcoin in a way to do away with theft and central (governmental) manipulations.

Fiat inflation vulnerability
Although, the central bodies (governments) may not be blamed at times for the reason they are manipulating the fiats, especially while devaluating it during inflation, and can be blamed when their is excess fiat creation and introduced into circulation. Fiats are manipulated/devalued for the benefit of the country but making citizens of the country to lose and make their worth depreciating. That is why fiats needs alternative, a kind of money that will be easy to spend like fiats and yet not vulnerable to governmental manipulations, bitcoin created the bridge to that part.

There are many strong fiats, while some are weak and more volatile, a good example of strong fiat currency is dollar, and can be used as a good example of bitcoin-to-fiat price trend comparison. For the past decade, bitcoin hodlers have more increase of 20% in bitcoin price not actually as a result of bitcoin instrinsic price increase, but due to dollar that is not immune to devaluation and gradaully depreciating over the past years.

This was taken when bitcoin was at a price slightly above $10800 in accordance to a crypto news.
A decade ago bitcoin price gain
Limited supply + marketcap = 80% in bitcoin price
USD deprecuation = 20%
(Limited supply + marketcap) + USD deprecuation = 100% butcoin price trend.


https://cointelegraph.com/news/fiat-inflation-has-cost-bitcoin-hodlers-20-over-the-past-decade/amp

If you check some other countries like African, where fiats are more vulnerable to depreciation, these would be the worst cases. This is one of the major reasons the need for bitcoin especially. Normally, fiats are depreciating assets by design, while physical money can still be vulnerable to theft, but with expert knowledge about bitcoin, bitcoin is not vulnerable to theft, and also not vulnerable to governmental regulations. Bitcoin has limited supply of 21 million, and this makes it a deflationary currency, the more people adopt it, the more people make use of it and the more it is getting stronger, and also increasing in marketcap and price. Although, the price of bitcoin may seem decreasing at times, but later, the price will increase unlike fiats that are constantly depreciating.

Centralized (governmental) bodies compromising bitcoin and crypto in general.
Nowadays, governments have now being trying to make bitcoin so centralized, many people are now using bitcoin do not even know what private key or seed phrase is and depending on third party while not knowing the third party are actually third party due to how fiats are working, they thought bitcoin and other crypto works that way, therefore not even knowing about privacy. These are all wrong because bitcoin is a privacy currency, people can hold it without depending on any third party which is the best way to go while dealing with bitcoin with the current settings, some people even knowing about this but because of trading flexibility, they still keep their bitcoin and other crypto using centralized party services, which makes them not to be the owner of the coin on blockchian while the third party are not safe and secure.

People do not need to keep bitcoin with third party, you can keep it yourself without anyone knowing, all you need to do it to make use of noncustodial wallets, generate your seed phrase and/or private key. Storing the seedphrase and/or the private key in a safe place that is safe from thieves and damages. If the seed phrase and/or private key is compromised, that means all your funds are lost.

Some approaches towards seed phrase/private keys protection
Bitcoin is digitally created, users should be digitally conscious, while privacy, security and safety should be maintained. Malicious actors are also trying their best to steal bitcoin from people having it. But, there are many approches to avoid hackers from stealing bitcoin, few of this is discussed below.

1. Avoiding custodial services
There are different custodial services, although they have helped in bitcoin adoption, but still must be avoided, they make use of hot wallets to hold customers assets, while hot wallets are prone to hackers activities, and they are targeted by hackers because the custodial party keeps thousands to millions of customers assets. Most custodial services are often hacked and many have resulted to lost of users funds and never recovered.

2. Avoid using hot wallets for high savings
Although, hot wallet can be good for saving low amount of bitcoin, while experienced users can still avoid hackers by avoiding malware on the device used, but for saving high amount of bitcoin, cold wallets are best, and for ease of use and for frequent transactions, hardware wallet is good as a type of cold wallet.

3. Use of Shamir's secret sharing to protect seedphrase/private key
Seedphrase or any other sensitive information like private key can be protected by the use of shamir's secret sharing, in a way the the seed phrase is converted into secrets, and the secrets are divided into parts for high protection.

4. The use of multisignature wallet
Multisig wallets are wallets that can be regarded as M of N wallet, in which the wallet can be generated for N users having their own private keys while M users among the N users will be able to sign transactions. This makes it difficult for hackers to penetrate, even if one private key is compromised. It can also help in a way another wallet can be created and the bitcoin in the previous wallet is sent to new wallet if any of the M or N users lost his/her private key, or if anything like malicious activity is suspected.

There are still many other approaches, like having more than one wallet. But  the approaches to be used should not be too tedious in a way wallet owner will not be able to recover back his/her wallet during wallet lost.

Conclusion
Bitcoin is money, the first successful decentralized currency, which was created as an alternative to centralized fiats and also altenative to money that are vulnerable to physical thefts like thereby fulfilling what early days money can not fulfill.