Or have to go through great lengths to escape.
In my country you can’t buy any medicine without showing your ID… I mean, you technically can, but if you are registered they “give” like an 80% discount, so everyone thinks it’s a great deal, not realizing that’s the normal price, they are just pretending you can still go and buy a simple cold medicine without sharing your ID, phone, email, and street address with the drug store and whoever they decide to sell that information to, you just have to pay absurdly more. Yeah, you can lie about all the other information, but not really about your ID number. Probably soon, to get the “discount”, you are going to have to verify your email or phone number as well.
FWIW in Belgium you can get prepaid nameless cards. The post and their bank partner know it’s yours (due to KYC) but not the shops and for online shops you can use drop boxes.
For membership cards I specifically reject because of that. It’s optional though so IMHO it’s precisely the easiest thing to escape, just say no.