For those interested on the question of age verification and GNU/Linux: be aware that Systemd v261-rc1 was recently released. It now implements an optional birth date field in the JSON user database (see second item under “Other changes”).
The implementation of this field was prompted by age-verification or -attestation laws.
I’m totally with you on that. I use systemd daily and it has enormous benefits for system administration, but I don’t like the direction it’s headed and how the project is lead. That’s what I wanted to bring across here.