@rcombs From what I understand, the California laws (and many other state-level laws or proposals which are directly based on the California legislation) could probably allow self-reporting.
The New York proposal goes further though and explicitly prohibits users self-reporting their age and requires "commercially reasonable and technically feasible age assurance" at device activation. So that means hooking the system up to some Persona-like online age provider, and there I wonder what the response from the Linux people will be.