The government of Nigeria recently banned crypto currencies and instructed financial institutions to block any account discovered to be dealing in crypto currencies, but then, I don't know, it means crypto currencies usage even increased the more in the country after government placed the ban, this is to tell everyone of us that crypto currencies have become much greater than any government, except the people of the country are too afraid to stand up, then no government will be able to stop crypto currencies, they can only warn their citizens to be careful in their dealings with crypto, but to stop the people from using or investing in it, I don't think will work out at this stage we are right now.