Bitcoin is one of the most popular digital currency and currently the price of Bitcoin is at the highest position beyond all previous records. So if you buy Bitcoin and keep that Bitcoin in a wallet but you don't think carefully about the security of that wallet then Bitcoin can be lost from your wallet at any time.
One of the few things we need to know before investing in Bitcoin is keeping our wallet safe (It involves a little knowledge to invest in Bitcoin). Things that are important in bitcoin investment like buying bitcoin regularly, holding bitcoin investment for long time, achieving financial stability. Another important point is to ensure the safety of your invested bitcoins. Maybe it would be much safer for all of us to use cold storage wallets to safely store our bitcoin investments.
Click here for a detailed discussion on how to keep your wallet safe.
https://bitcoin.org/en/secure-your-walletStill, most countries in the world do not want their people to use Bitcoin without keeping money in the bank.
If you have little knowledge about Bitcoin investment then why would you keep your money in the bank like a fool. You may know that no one can control Bitcoin so the people of that country can invest in Bitcoin even if the country and government don't want it, Maybe you should do that too. You can invest in Bitcoin as you wish.
We see the biggest reason behind not letting people use Bitcoin is that if the people of their country invest in Bitcoin instead of keeping money in the bank, the economic condition of their country will deteriorate.
Your statement is not reasonable because who told you that if a country i.e. if the people of a country invest in bitcoins instead of keeping money in banks then the economic condition of that country deteriorates. Have you not heard of El Salvador, who has already declared bitcoin legalization since then this country has improved a lot and the economy of this country has improved a lot with bitcoin investment.