If the states start issuing their own digital coins, it will be the same as with the El Petro coin in Venezuela. In any case, some countries will issue such coins, some will reinforce them, others will not. We still have to see this and see what this will bring to people and the state in practice. In any case, such experience is necessary for humanity and we will use it. In any case, if centralized coins of individual states appear, it will not be worse for anyone. If for people such coins will not be of any interest, they simply will not use them. However, for the whole of the crypto currency, this will be good in any case. Any use of crypto-currency at the state level will benefit the Crypto-currency.