A cryptocurrecy issued by a government is stupid by definition: the crypto are decentralized, if they are controlled by a government, then they are usual fiat money in electronic format.
We hope people understand it ...
If we realize, a few crypto not decentralized. I think if central banks create their own cryptocurrency it will be good because its like digital fiat money and beside that, i think its secure and better than paper money we use right now. Soon or later, government and central banks will be jump in this cryptocurrency and i think its good