Government and the people who have power are the one that control what is happening in the country, they can regulate the cryptos if they want or they can feel come threats about it. And also another thing is that the people or the citizens of a country, some of it are want to use the traditional system or the fiat money because it is the thing that they use in their whole life and they dont want to change it.
I think this is not true! price of bitcoin is going to be very high at the end of this year as we will see bitcoin at the top market value, now a day bitcoin is moving but I think the last few months dumping made you think like this, but no worries mate price of bitcoin never remain the same, it is good time to buy next five years price of bitcoin will certainly be above 100k dollar so buying right now and holding can make your millionaires after five years as crypto currency is increasing in demand day by day.