Will cryptocurrencies have to follow more rules going forward?

[Sotherefore]

A lot of cryptocurrencies are serving as a threat to the economy of so many countries, since the leaders of such countries have a mentality of making it look as though cryptos are going to take over their local currencies.

Because of this reason also a lot of countries might likely banned cryptocurrency from their country believing that it is the reason why the economy of the country is not moving. I might be wrong though.
I don't even know what problem cryptocurrency has with most of these countries. I don't see cryptocurrency as a threat to any government or nation. Whatever the case maybe , they have to be sures rules and regulation they are creating does not have a dangerous side-effects in the cryptospace .