You can't ChatGPT a database entry in a government server, either

Obviously, but either you need to do a gov ID lookup (which, is it even possible/scalable/feasible JSUT for age checks?) or need to keep the ID proofs for an audit. I've only really seen ID checks for financial apps/services where proof of exact identity is required, not of age.

Probably no feasible in the US because of political reasons, but technical I think it could be done similar to how gamling works in Denmark.

You have a government SSO solution (2auth?) called NemID / MitID that is normally used for Banking[1], doctor or hospital appointment, library, student loans and what not.

But if you want to gamble on a Danish online casino you also have to verify your account with it. You can even set yourself on an exclusion list, and will be banned from all Danish online casinos. [2]

What is JSUT?

[1] No matter what bank you are at, same login, pretty neat

[2] https://www.spillemyndigheden.dk/en/rofus#-rofus-

It's already scalable and feasible: ID.me