To be clear, I’m not advocating for online age verification. I’m very much against it in any form. I’m just curious from a technical standpoint if it’s possible somehow to construct an accurate age verification system that doesn’t compromise a user’s privacy? i.e., it doesn’t expose the person’s identity to anyone nor leaves behind a paper trail that can be traced to that person?
If there was a certificate you could verify from the government once you had it it only verified with the site saying 18+/21+ type of thing, if have certificate allow in, I feel that should be more than enough. Profile on the device with the cert is logged in with passcode, fingerprint, faceid, password whatever… Just to have the cert attached to your user for the browser to verify it was there would cover it. It shouldn’t show birthdate, or any user data, just age over 21 - yes.
If a child accesses your account, they would have access, but they shouldn’t be signing in as you.