There would be no wonder why a government would react in a hostile way towards private issuance of money for this is a big threat to them. The government is so used to controlling and manipulating everybody's money, the economy even rely upon it specifically from the taxations that all the money is having for every transaction it was going through, so privatization is a big move against their usual work and might affect them big time. So blockchain and digital currency would seem like getting into the government's way because of the decentralization.