Governments will not create their own cryptocurrency, because it is difficult to provide a common cryptocurrency rule for all countries as well as changing the value from fiat to cryptocurrency.
Countries are already working on their own cryptocurrencies. The process of their implementation will definitely take time for legal reasons, because they will be centralized. However, the complete replacement of fiat money will be difficult for a long time.
No I dont agree with this. They can introduce such crypto which is if not the same as used in the international market, but it will no doubt usable in local markets. It is also good because people will transfer their money easily from one place to another without using banks. I think it is the need of the day that government introduces their own cryptocurrency. People want to use digital things then why not currency.