The idea would be to use ZK proofs to demonstrate that "yes, this anonymous request is from a client acting on behalf of an adult human EU citizen" - that's something that is not easy to do today.
So then you don't need either attestation or government IDs, right?
> The idea would be to use ZK proofs to demonstrate that "yes, this anonymous request is from a client acting on behalf of an adult human EU citizen" - that's something that is not easy to do today.
But how is that even useful? Is it good to exclude real people from Korea or South America? Do we really expect criminal organizations or for that matter even children to be unable to find a single adult EU citizen willing to anonymously loan them an ID?
It's about as plausible as criminals being unable to run their code on a device that can pass attestation. They're both authoritarians with a conflict of interest trying to foist a hellscape on everyone under a pretext their proposal can't even really address.
How is the system proposed by GP authoritarian? It's not actually giving away any real PII. We could just argue that it would make Internet less usable for "illegal" immigrants who don't have a Gov ID - whcih can be seen as a problem already in itself, but still doesn't make that solution "authoritarian".
If you're willing to admit this is entirely possible from a technical standpoint, there's a separate question about how useful/valuable it is.
Making it harder for children to access extreme pornographic or violent content seems useful to me. Many advertisers want to be able to say they've shown ads to a human not a bot. Humans in WEIRD* countries have more valuable eyeballs than humans in the developing world.
If you don't solve for those use-cases in a privacy preserving way, adtech will do it in an intrusive way - which is what Google are doing in the OP.
*"Western, Educated, Industrialized, Rich, and Democratic"