https://www.theregister.com/2026/03/24/foss_age_verification/?td=rt-3a [theregister.com]
From TFA:
> After weeks of debate, code to record user age was finally merged into the Linux world's favorite system management daemon.
>
> Pull request #40954 to the systemd project is titled "userdb: add birthDate field to JSON user records." It's a new function for the
> existing userdb service, which adds a field to hold the user's date of birth.
Nuff said.