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?


It’s possible with certificates and 2fa issued by a government, which already have all your data, that would only verify that you are over 18.
We already have that in Spain, sort of. We have a government app where you have a digital id stored and you can make it create a verify qr that only shows if the user is over 18 or under 18, no more data. The qr only last 5 minutes active.
It is necessary? Not for internet access. That’s a duty of the one paying for internet in the household, not the government. If they have underage kids under their responsibility it’s their duty to make sure that they get good education about what to see and what not and restrict access if needed. Having the government to universally interfere everyone it’s just plain bad.