The market of cryptocurrencies is quite a new market, and it is too early to talk about the stability of currencies. Market fluctuations happen all the time. For cryptocurrencies to become widespread, their prices must be stable, but it will take a long time. This allows users to make confident day-to-day transactions. The introduction of stable cryptocurrencies would allow users not to worry about how to make a purchase at a more favorable rate, as it could happen with volatile coins. Leave it to the traders. Ambitious projects that develop stable cryptocurrencies will lead us to a world where you can pay with cryptocurrency for coffee, lunch or a cocktail at the bar.
In the future, I think there will be a lot of cryptocurrencies with the established rate, but now there is simply no.