I don't think so. Argentina for example is plagued with shitcoin tether use. For arentinians is very hard to get away from "dollar-mindset" and after so many years of shitcoinization will be hard for them.
Uruguay and Peru ? How many merchants they have that already accept BTC? A Bitcoin circular economy start with merchants not with speculation. Start with people paid in BTC.
And all this start with good education and knowledge about how to use Bitcoin. Just go on any of these places and ask on the street random people if they are willing to be paid in BTC for doing x or y work. Or go to any shop and ask "can I pay in BTC?" The majority will say they prefer USDT.