I'm in a developing country so I can't share that sentiment, born and bred South African here. Dollars aren't really a thing here, if you gave someone a physical dollar or USDT he'd tell you to jog on, even though our currency has lost so much value the liquidity is the killer app, people can exchange it so easily
Now countries like Zim, Tanzania, Kenya sure their currencies are closer to confetti so people like the dollar there, but it's also not liquid enough and the premiums you pay on the physical USD is crazy, you could get more bitcoin.
In addition most people using USDT/C in developing countries are using it on TRON because its the cheapest in fees, so they are forced to buy and hold tron to cover those fees or stake it to purchase bandwidth on the network
Lightning is far superior to this IMO, most African countries apart from a few like maybe Botswana and Tunisia are close to cent sat parity or are already past it, so BTC is already the better medium of exchange and accounting system
Another issue I have with stablecoins is we exporting our value t the US via our local inflation as we need the dollars to trade and then you saying oh it's not all bad, get this synthetic derivative of a dollar to capture and retian some of that purchasing power in the medium term.
Why do that? I'm already poor lol, I'll rahter bypass all that and just go straight to bitcoin