I’m not sure that is feasible, because in order to trust the answer, I feel the asker must know and trust the one providing the answer. It sounds like you’re imagining a system with many different ID providers? What prevents me from creating my own provider that just answers “Yes”, even for people under 18? If the site asking does not know it is my fake ID service providing the answer, I’m not sure they can trust any answer.
But I won’t pretend to be an expert on this topic, so perhaps it is feasible somehow.
Candice_the_elephant@lemmy.world 5 hours ago
Or the government sets up an age verification service that doesn’t store logs and only reports numbers in aggregate. The restricted site sends you and a unique id off to the government service, you verify there and it hands back the id & a yes/no token to the site.