With the opportunity to hold USDT for example, I was able not to lose purchasing power because of the high inflation in my country and the devaluation of the currency
You still lose purchasing power because the USD also loses, so why not keep your funds in BTC.
I see trusting a company in an offshore country that might block your funds with a click as a really dangerous situation, far worse than just buying USD on the black market.
In many countries, stablecoins such as USDT and USDC are the only way for people to access foreign currency and avoid the devaluation of the domestic currency against the US$. I also hold USDT throughout the crypto winter to be ready to DCA BTC & ALTs. I have more faith in Tether than our banks ^^
I always found it funny that most of the ones that use USD as a safenet come from countries that brag all day about de-dollarization and the death of the dollar, yet I see nobody trading any kind of token paired with the yuan, rial, rupee or ruble.
It is almost a normal trends to keep reserve funds in stable coins waiting for the market to go dip or some corrections to take a positions. I am not against the idea of leaving funds on Btc, but I think that we can keep some stable coins to accumulate more bitcoin when prices goes dip or on a very volatile situation.
Stable coin act like a back up coins with faits to exchange crypto coins on the event of a bearish situations. Keeping all fund on bitcoin, in my opinion, is unsafe considering the facts that, at some points, traders/investors will definitely taking profits, and bitcoin must have to be paired with Fiats backed currencies like USDT, USDC for effective profit taking.