

Ok, after checking the Spanish ID also supports NFC, I just never saw NFC readers for them. I think using NFC on your phone/PC to confirm you age by swiping a physical DNI card would work for convenience but I’m still not convinced about security. If you just have to verify your reddit/google/porhub account once kids would just give some 18 year old friend 10 Euros for a single ID swipe. If the entire operation is fully anonymous (you don’t know which ID was used) there would be no way to detect this. You would get dozens if not hundreds of accounts verified by the same ID. You would be able to simply setup bunch of age verified Google accounts and sell them online. If you make it possible to track which ID verified given account you will lose anonymity. I don’t see a way around it.
Or per kilometers driven.