Add a required birth date prompt (YYYY-MM-DD) to the user creation flow, stored as a systemd userdb JSON drop-in at /etc/userdb/<user>.user on the target system.
Motivation
Recent age verification laws in California (AB-1043), Colorado (SB26-051), Brazil (Lei 15.211/2025), etc. require platforms to verify user age. Collecting birth date at install time ensures Arch Linux is compliant with these regulations.
This is just a pull request, no changes yet.
The pull-request discussion thread has been locked, just like it happened for the similar thread in Systemd, owing to the amount of negative comments…
A slippery slope isn’t always a fallacy. Yes, that is a specific name of a fallacy, which people commonly point out, but it is also the form of a valid logical argument. If there is support that this will happen, it isn’t a fallacy.
I this case, a user-entered field is useless to “protect children” (being generous and assuming this is the actual reason for the laws). Children will just lie, as they have been doing for decades. The state will point to this as the law not fulfilling its stated goals, so they’ll need to verify age through other means. Even if the goal isn’t surveillance of people, this is still likely to be the result logically. This means the slippery slope argument is valid.