So far, the problem with most of these currencies is that it is not certain that they actually have a dollar cover that covers all the stable currencies that are issued.
Exactly. It is interesting that not so long ago most topics involving stablecoins were about their scam nature because the centralized companies issuing them nonstop had never shown any proof of funds. They just keep printing tokens out of thin air! But these days people seem to have either forgotten that or have ignored it completely.
The other important point that prevents the use of stable currencies as a real alternative to the dollar is the decentralized nature of these currencies, since they were all developed on networks that operate in the blockchain system. This same point is what helps developers to produce an infinite number of them without the need for support or confirmation from any regulatory body.
As we have mentioned in other discussions, there is no reason to be afraid of the dollar and it is not in the interest of the global economy to abandon its use since the largest percentage of countries' reserves in foreign currency is in US dollars. And even if they wanted to do so, there is currently no real alternative capable of playing the same dollar in the global economy.