you can send them around easily without having to deal with bullshit payment systems
But you do have to deal with bullshit payment systems. I can't receive stablecoins in my regular bank account, I'd have to set up some crypto nonsense on DankRocketBets or whatever for it to even work.
Why would I do this when I can already receive actual USD without any extra ceremony?
Stablecoins are a solution in search of a problem.
Monero is better for that task.
Until it becomes another bullshit payment system
No-one in the real world wants to be paid with a $USR. Most everyone wants a cashapp/zelle/PayPal/wire transfer. The bullshit payment systems gained ground on crypto while crypto became more difficult/less usable