the two currencies, both digital and fiat money, in my opinion have similarities, both are acceptable to the public because they have a function as a transaction tool in making payments and purchasing goods and services, fiat currency has value and is trusted as a medium of exchange because it is issued by the government while digital money apart from being an investment tool, digital money can also be used as a transaction tool even though it is not issued by the government, but in this case of course there are many policies from the government that prohibit the use of digital currency as a transaction tool and one of them is the nature of digital currency which is not limited and cannot be controlled by the government, however, along with technological advances in today's modern era, of course, one day the government will be able to accept digital currency as a substitute for fiat currency or the currency we usually use today, because currency digital has b many advantages both in terms of transaction speed, security and ease of storage.
Digital currencies can also be issued by the states themselves, which these states have recently been using very well and are looking for new options
Whether the states will want such a competitor as digital cryptocurrencies is a very big question, because there are a lot of pitfalls, for example, about the level of emission. No offense, as the head of state, you would like to influence the inflation rate in your state and somehow try to influence it. Now imagine when there are guys from a foreign state who are trying to influence this... Personally, if I were the head of this state, I would think about it a little... And even more so about the displacement of the national currency by some competitor...