Makes sense to me, but I still think that it's an improvement over what we have now in the world and some sort of contribution to mass adoption of cryptocurrencies. People will still get to know blockchain and learn how to deal with crypto wallets. The main potential difference from fiat could be that national cryptocurrencies can have limited supply and bring the end to serious devaluation of currencies. Also, no fake money and no accidentally destroyed money (paper becomes old and unrelaible with time and it's also naturally not protected from mud, wated, fire etc.). As people learn how to use official cryptocurrencies, it will be easier for them to turn to the ones we are used to as well.