There are a lot of times where the government tries to control crypto but there is no chance for them to do it, they cannot control it or even put tax in it. This is the reason why the government will not give any encouraging things to its people. However, there is a chance if the government let its own country use cryptocurrency for any transaction including government transactions like paying tax. But as of now, the government of each country will try control it and put tax in it even though they cannot and not a single chance to become successful in it.