A few countries and central banks have been talking about digital currency, and most of them are carefully ignoring the term crypto. Fact is- digital currency is not the same as cryptocurrency. These countries/central banks are recognizing the benefits of the digital currency features of cryptocurrency, but they dont want any of the decentralized uncertainties that come with blockchain-based currencies.
Will countries or central banks create their own cryptocurrency?
I think its is possible that countries and central banks will create their own cryptocurrency, but for now it is not because they also need to support and focus on their currency to improve the economy of their country.