Age verification clearly doesn't belong into #systemd. We should have never merged this. Instead this should be incrementally added to the kernel itself. I'm doing my part:

https://lore.kernel.org/all/20260401-i-hope-someone-believes-this-is-real-04f24e03944e@brauner

[PATCH] vfs: require verified birth date for file creation - Christian Brauner

@brauner no, this is clearly the wrong approach. Bootloaders like #GRUB run before the kernel, so clearly they should be responsible. I suggest adding DNA-based verification. Simply send a saliva sample to your nearest lab when booting the computer. This simple process only takes 60-90 business days, so the usability impact would be minimal.
@samuel @brauner I know this is a joke but adding something in GRUB to say your over 18 before the OS even boots would mean that the OS itself can just say adult=true and everyone is happy