>"Oh, it's that one privacy nut again who always wears sunglasses and a hoodie and only pays in cash"

And the store person will then what? Open excel wnd write "a dude with glasses was ehre at 12:51"? and then send the file to 100+ partners?

>You don't need to be identified by name, just by a "fingerprint". If you go there regularly you will be identified by your "fingerprint".

So the physical stores have some shady dudes attempting to lift fingerprints from money then some statistics guy try to put probabilities on which fingerprint matches which anonymous guy?

here in my country you still pay with cash and the store people put it in a machine combine it with money from other people, it will be a lot of work and risk for some shitty nano reward.

Edit typo

Sorry to nitpick, but since you wrote it 2 times wrong:

it is cash, not cache.

No problem, thanks

And the GDPR forbids them from writing that information (e.g. "the privacy nut bought apple juice") down or passing it to a third party without your explicit consent.