I think this is a step that is not right, if every country or government makes its own cryptocurrency, then other countries would not necessarily accept it so that it makes no difference with the ordinary currency, better a few countries join to create a cryptocurrency so that can be used globally.
We can't stop if they will create their own currency because they are making the laws and processes so it will be much easy for them to get attraction to the community or the people's who is not in crypto and don't much understand the way what makes more crypto advantages to eliminate the government hands over the money and other matters.