I’d be curious to see some analysis on the costs of processing fees for cards vs the cost of handling cash, which includes the risks of handling for businesses. Cash is risky for businesses, nighttime deposits, armed robberies, etc.
As far as restaurants go, pretty sure it’s federal law that if you offer sit-down service, you must take cash. If not federal, lots of states have laws like that.
As far as
@OccamsRazor ‘s point about not being able to use credit cards for autopay, I suspect that has more to do with the fact that in many cases, those are actual cash advances (not a purchase) which generally come with high fees. Maybe not a lot of people do that, and they are just phasing it out. As far as paying mortgages or other credit card bills with a credit card, another element is that they don’t like you going into more debt to satisfy another debt. Might even be some rules around that, not sure. O auto pay everything on a card. Only one charges me an extra 2% and I’m happy to get the points.
I really don’t use much cash anymore. Good travel rewards plus extended warranties, better rental car insurance (not that you can rent a car without a card to start with) are just too compelling. Last half dozen times I’ve flown it was all on point redemptions, including business class seats on two international flights.
But at the same time, if I go to a business that is cash only, I assume they are just trying to cheat on their taxes which I’m happy to support, assuming I have cash on me.
When I was working in Belgium 20 years ago, many of the green/farmers markets in the town squares were already card only. Europeans been complaining about this for quite a while too.
If you don’t know the sorts of shenanigans that FINCEN are involved it, you should look into it. Fun stuff! This is probably the real reason - no cash means no privacy.