Do you know why people would choose to use stablecoins, rather than trade shares in an ETF that held government bonds, or something like that? That's what stablecoins are, effectively just a share in the holding company's bank account.
Consider living in a country with an unstable and fiscally irresponsible government. And having a net worth <$10k. Suddenly being able to hold your money in USD, on an account that cannot be seized, and can be used globally, becomes incredibly attractive.
You don’t need financial literacy, there is no min-buy in like ETFs/bonds, and there is minimal KYC or other identity restrictions. I think this is an incredible boon for the billions of people living in such conditions.
If the latter, I think that explains why stablecoins are popular in countries with weak institutions.
In a country with strong laws, and strong rule-of-law, "Code is Law" is a solution in search of a problem. But in a country with weak laws, it can be a lifesaver.
The GENUIS act and I think MICA both disallow that part, exactly for this reason... traditional banks were seeing the writings on the wall and lobbied for such yield distributions to remain their own privilege only. For now.
But you can pretty easily find similar/better yield using DeFi and stake/bond some of your crypto assets in various strategies.
The difference is that there are virtually no minimum and usually no KYC... but there are also not many guardrails/gatekeeping, which leave the place to many scams/traps. It's best to stick to the largest platforms/communities and not fall for insane APY claims.