[pas]

is there any mention of granularity? so if the user sets their age bracket, then there's no DoB stored. if the user is old enough to fall into some other age bracket they can set that if they want. (and then somehow making this a bit more data driven - ie "verifying" - is a different matter altogether.)

[bee_rider]

IIRC the age buckets were defined in the California law. They were something along the lines of age ranges that would intuitively map to adults, teenagers, and kids, I forget the exact borders.

I think the intent was for the OS to know the user age, but only provide an age range, so it could automatically upgrade people as they aged (but I could be wrong about that).