Stripe supports stablecoins if the merchant enables it. They still charge 1.5% though. Building and maintaining integrations and dealing with customer support

Stripe supports stablecoins if the merchant enables it. They still charge 1.5% though. Building and maintaining integrations and dealing with customer support and monitoring accounts for fraud costs money. And the number of people who keep spending money in stablecoins is minuscule. (I'd never use them because I want fraudulent transactions to be able to be reversed.)