Crypto-only economy is nothing more than the libertarian day dream. When some countries ban cryptocurrencies right now, it isn't possible.
I will say that some do not prohibit. Most countries have declared cryptocurrency illegal. Could it be because it’s quite difficult to tax transactions? But the most interesting thing is that the officials who banned it themselves own bitcoins. At least in my country.
Talking about banning bitcoin who can't ban bitcoin so easily It's true that it's funny that officials say they own Bitcoin but have kept their identities secret.they're going to also keep step with the govt but won't support banning bitcoin. Crypto helps to enhance a country's economy very easily.