Or a regular Dutch bank card, same EMV chip same everything as a German "EC-Karte", doesn't work in most places such as supermarkets and apothecaries. They keep (often angrily if I'm not the only person in line) asking if it's a credit card that I'm trying to pay with.
No, I don't have a credit card, that's another problem. So I tried to solve both problems at once by getting a bank account in Germany (most come with a CC), but because I haven't taken loans before, the local credit scoring agency can't give me a positive score and so I can't get a card number allocated. This system doesn't exist in the Netherlands where I'm from, I thought Germany was all about privacy, but the Schufa is apparently supposed to know everyone and you're encouraged to keep an eye on your score and be mindful of how things will impact it. Blows my mind. Not being known is enough of a problem that there's a legal requirement for some banks to offer Schufa-free services, except then you pay excessive fees (someone once said: it's expensive to be poor) and obviously you still won't get that credit card number. I don't want any credit, I can pay up front just fine, or e.g. for car rental I could put tens of thousands in some escrow if you want to cover all risk. I just want to pay for services just like everyone else.
I don't think PoW-based e-gold is the solution either, but there are a lot of hurdles still with simply paying for things in 2022.