The real question is why do people in the US use credit cards instead of debit cards like everyone else?
It provides better customer protections over any other payment method. It allows you get a charge back if vendor is acting funny.
You zero practical protection with cash for example if physical or less protection with debit card. Debit cards are not good to use for everyday buying if it is your checking account. It is too risky.
Many countries have laws and regulations which create customer protections, so there’s no need to rely on 3rd party solutions.
Good luck enforcing shit in a US court against a “private enterprise” and you sure as fuck can’t count on any regulator here for anything beyond some good lip service.
Smart move is to go based on how system functions, not how it supposed to work. It is likely configured for this anyway.
Use case where possible folks, they are taking it away as is.