Yes you can do job and trading together. You can keep a record of the coins history like currently Ripple coin is doing good in market.
The one thing I would like to add is that. During morning time the price of the coin increase  and during night the price falls.

It may happen that Bitcoin reduce to $4000 but that doesn't mean that this decline in price will permanent because there are many people from the world who are using Bitcoin regularly and which means they are using exchange services too.

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What if governments somehow manage to link our unique id with Bitcoin wallet and bank account. Or what if government manage to make such crypto wallets which can record the transactions details.
Like every time we use internet we registered our devices with its unique MAC address and IP address so government can use those IDs to track transactions.

No if you are new to the market you should never do trading. First try to get some knowledge about market of crypto currencies and then start do trading in small small quantities. The more you do trading the more you will get to know about market and at the end you will come as a good trader of the crypto currency.

Obviously if you buy bitcoin at 10k USD and hold it for more than 1 year then you will earn a huge profit.
I remember the time when i entered into Bitcoin world then 1 Bitcoin was equals to 4-5k usd but later on that value reached more then 15k usd and that too in less than one year.
So if you hold your "x" coins for future then surely you will end you with a good amount of money.

Currently it is good to sell Bitcoin and buy other coins whose value is increasing at high rate like Ethereum and Ripple. Bitcoin will take some time to reach up to 20k USD mark. So you can do one thing, currently invest your money in coins like ripple and etherum and when the value of Bitcoin starts increasing then sell your those coins and buy Bitcoin

What if people convince governments of their nations to make Bitcoin as a legal currency or what if we agree to give tax on our bitcoin income? Will government then make Bitcoin a legal currency.

The only best way to earn Bitcoin from my point of view is to work under blockchain or work with with the companie's managers who manage the campaign in blockchain. This is the only way you can earn Bitcoin easily and more effectively.

The best way to save money is that buying coins like ethreum and ripple and hold them for a long term untill you get double from it.
Or you can buy ICO coins in which you invest your money for long term and get a x2 or more than x2 money return during withdraw.

Bitcoin not only help students but also it helps other people to earn money. By giving a little amount of time you can earn an extra money that can help you to bear daily expenses but those people who continuously work for crypto currency can earn a good amount of money and yes this happens to most of the students that when they start earning good money from Bitcoin they stop their studies ( my friend who is a marketing manager in OCO has disconnected his study after getting a good amount of money)

Hold and trade are two different things and both have their advantages and disadvantages. In hold you play for long period of time that can be more then one year but in trading you choose to trade on the selected coin which you feels that particular coin will give you profit.
In trading and holding you have chances of having huge profits as well as losses because the price of the coins changes according to the behaviour of the market.
The major difference in holding and trading is that, In holding you invest your money for long time where as in trading you can do it on daily basis

Economy without physical money is not safe for the poorest people because for the digital currency we need a gadget so to access digital currency and to do transactions and it is not easy to poor people to manage and buy such gadget through which they can access the digital currency world.
Even proper education is also required to use such currency and there is a huge number of people in the world who doesn't have a proper education.

Volatility is not a bad thing but it impacts others when they  didn't pay a proper attention like last year in December suddenly the bitcoin prices reached at top and on the next day the price started falling down.
so all those who were paying a proper attention earn a lot bu selling at that point. But others who were taking this volatility as non serious ended up with losses.

No you cannot make passive income with daily trading because prices fluctuates daily it might happen that on day one the price rise and on day two the price fall. Holding your coins and investing daily is a good method if you are looking to earn a huge profit.

You can buy Bitcoin currently and hold them for long term, because today's value of 1 btc is 10.5k usd and and its value is increasing agaun so if you buy it today and sell it later when the value is high, you can earn a huge profit from that.

Doing technical analysis helps you is some way, it gives you a hint that how the crypto market is working and in which coin you have to invest or not. I will not suggest you to invest your money only on the basis of technical analysis because it doesn't give a brief knowledge.

I don't think Bitcoin is good for long term hold because we don't know when the government's mood changes and the next day they announce crypto currencies illegal because now many countries are banning Bitcoin and if you invest your huge amount for a long term and government announce it illegal then you will suffer a very big lose.

Bitcoin is the first crypto currency. Bitcoin is a whole new level of income and money. Even Bitcoin doesn't have a physical value but now holding more then 10 billion dollars market.
Bitcoin is the first digital currency and it is a good way to earn some money through Blockchain or earn a huge profit by trading.

Investing in ICO's is a very much risky because in this there no guarantee that at the end of ICO you will get back your money with profit or not. If the ICO coins got successful then you may get a huge profits but if not then you might loose your huge money that you have invested. It is like a gambling all depends upon your luck and good will of the coin makers.