> A waitress at another cash-only restaurant told me, worse than customers who hear they won't take credit cards are the apple pay folks. "They really get annoyed when they don't get their apple pay"

I get what she's say, but it is kind of a weird comparison, because Apple Pay is more-or-less payment network agnostic. You can pay via credit, debit, or transportation card (and possibly others that I haven't used) on Apple Pay.

In the US you even have Apple Cash which is pretty close to digital cash equivalent... not really workable for a business with the $2k/week limit though.