[dylan604]

the whole allowed to/not allowed to charge extra to cover the processing fees is a yo-yo. One of the best known examples is gas stations showing you different prices for credit/cash on their signs. So the "until a few years ago" seems like some internet trope as I can remember the gas station signs showing cash/credit from back when I was a kid, and let's just all agree that wasn't "a few years ago"

[acdha]

It might also be that you’re just hearing from people in different states. More than half of the states allow surcharges, but that can change: for example, Oklahoma removed the ban just last year: https://legiscan.com/OK/text/SB677/id/3231564