I think every country has different ideas, because the government can think the best for the people who have given them power. so their duty is to provide the best for the people's welfare.
But in my opinion bitcoin will more popular in future and maybe government will more promote this currency for their citizen because people are getting a lot of benefits from bitcoin and their life is more comfortable by it, so bitcoin will more use in everywhere than paper money and i think the importance of money will extinct and everyone want to deal in bitcoin.