I haven’t reviewed the whole thing, only small parts but it does look to handle online verification better (re: invasiveness).

There is a section talking about a prototype app already released that is used to store age. It verifies off a couple different government docs (ID, bank details, upcoming Digital ID), but in the end only stores the user’s age (no name, ID, birth date, or other details). The fact page for the app claims that once age is established there is no further contact between the user and age verifier, but of course this is where I likely see the issue with any age verification tool. It’ll depend on whether the verification tool trashes age-related data once done with it, or if they retain a copy for whatever reasons.

Proof of age is tied to the age required per country per activity, but this sounds far more reasonable than having a single company verify and manage age data (Persona in the US).