[mercutio2]

Yes, but you’re perhaps missing OP’s point?

Incidence is very much on customers, but (high interchange fee) credit card users are getting a rebate of most, if not all, of that. It’s the cash users who AREN’T getting a rebate, and thus the incidence is on them (and people using other low-or-zero cashback payment methods).

[AnthonyMouse]

The incidence is on everyone. Paying 3% more or, for small purchases, >10% more is a net loss even if you get 2% back. Meanwhile merchants are increasingly offering a lower price for paying cash, and the ones offering that will generally have the same credit prices as the ones who don't, so paying with a card is paying 3%+ more to get 2% back -- and not everyone even gets 2% back. People with poor credit typically aren't offered those cards.