Maybe my memory is faulty, but I never remembered having to pay a surcharge to use a credit card. Now everywhere I go there are signs saying that there is a 2.5-3.5% surcharge to use a car (and others that say that there’s a 2.5-3.5% discount for using cash, I assume to get around wording)


Yeah.
It’s less trouble for, like, a two-person burger truck. Perhaps that’s what OP is seeing. But get more cash flow going and it’s is plenty of trouble.