Crypto currency is not yet popular enough, many states strongly reject it, and people do not want to believe, but I think that soon everyone will know about the crypto currency.
The state forbids and reject crypto not because less popular but the threat that will be given crypto on the local currency and the country's economy. how anonymous will make financial transactions undercover. that's what the government is afraid of. but crypto will continue to grow. maybe one day there is a system that can manage and control the user crypto?
Some of the above fears are the cause of rejection by some countries but the fear is not applicable in countries that currently legalize bitcoin for their community use as a method of payment. Should the countries that are still in doubt do not only see the risk of acceptance of bitcoin alone but should also consider the potential and benefits of acceptance bitcoin.