How is your country's currency different from stablecoins? Nothing, damn it! What could be a positive trend in this for currency users? Nothing. If the currency of your country is controlled by the government (central bank), but the stablecoins are controlled by a certain company, which, in both cases, can do whatever they want with their stablecoins, whether it be endless emission, and therefore inflation. Stablecoins are a very, very poor alternative for storing value, only valid for a short period of time. Stablecoins has the same disadvantages as any money - depreciation and unsuitability for storage. Stablecoins can't help countries beat inflation in any way, even though it is better than the national currency. Here need completely different tools.
The problem with stablecoins is that there are already several options on the cryptomarket, and new ones will be created. There was something similar in America, when each state had its own dollar. Which of stablecoins will win is unknown, but the losers will be useless to anyone.
Make a mistake with an investment of stablecoin and you are a beggar.
That is %100 true and this is why I do not use stablecoins at all. People who think that stablecoins are fine are people who are just kidding themselves. I just put my money in fiat and wait for the price to drop if that's what I want to do, which is rarely what I want to do to be fair because I keep all my investments in bitcoin and nothing else, but in rare cases that I rather have dollars, I do not use usdt, I just use usd and that way I know that it's the same thing.
Most places have a withdraw option to your bank, and in order to do that you need to have fiat, and then fiat in your account could stay there without you withdrawing it and then you could reinvest it. USDT has nothing over USD at all and people will eventually realize it.