Why is cryptocurrency illegal in some countries?

[uchegod-21]

The government hates decentralization.  This is because the government likes to be incharge. They like to control their citizens and be involved in thier activities (financial activities inclusive). The use of certain cryptocurrencies like Bitcoin or other private coins cannot avail the government this opportunity of controlling the financial activities of her Citizens.

Use of cryptocurrencies tends to lower the revenue the government gets from her Citizens through taxation. It will be difficult (if not impossible) for the government to know the percentage of tax to impose on owners of private coins except the taxes are imposed on the goods and services they enjoy which is not fair enough.

The government is also aware that fraudsters carry out their criminal transactions on the cryptocurrency exchange due to the private nature of most of these coins using the dark Web Because they know they will never be caught.
The government is aware of all this, hence the illegalization of cryptocurrency.

[Rupok]

Bitcoin is decentralized, which cannot be controlled by governments, so many countries believe that criminals can easily finance and operate activities using them.  Bitcoin is considered illegal in my country especially for this reason. I think Bitcoin works great and can save the country from inflation.  This is the only reason bitcoin is illegal, the government can't control bitcoin. But that doesn't stop bitcoin, bitcoin is moving at its own pace. I hope for the future more countries will accept bitcoin and decide to legalize bitcoin.

[Marvell1]

Bitcoin is decentralized, which cannot be controlled by governments, so many countries believe that criminals can easily finance and operate activities using them.  Bitcoin is considered illegal in my country especially for this reason. I think Bitcoin works great and can save the country from inflation.  This is the only reason bitcoin is illegal, the government can't control bitcoin. But that doesn't stop bitcoin, bitcoin is moving at its own pace. I hope for the future more countries will accept bitcoin and decide to legalize bitcoin.

Do you believe what they say? Have you ever wondered, what did criminals use for their illegal activities when bitcoin was not yet around? Is it fiat currency, and has the government ever condemned or banned fiat? What the government says about bitcoin only shows their deadlock in finding bitcoin's weakness to ban it, they don't find any real reason to ban it and they only give stupid reasons. Don't rush to believe what they say, do your own research to know the truth they are trying to hide from you.

But I will not agree with you that bitcoin can help your country escape inflation. Bitcoin is a highly volatile asset, relying on it poses huge risks to the economy. Furthermore, solving inflation and helping the country develop requires many different factors and that is not bitcoin's mission.

[Btc_1856]

I think Bitcoin works great and can save the country from inflation. 

Inflation is caused by a country's currency losing value, and the value of the currency depends on the health of that country's economy. Bitcoin cannot create jobs, cannot make energy cheaper or cannot help attract investors to the country...How does Bitcoin help countries escape inflation? Bitcoin is a deflationary asset but that doesn't mean it will be strong enough to help the country or the world's economy escape inflation, don't be delusional.