As of June 29, 2026 the law discussed here is a recently passed California state law (AB 1043) that requires age validation before using a computer connected to the internet. This is expected to happen at the operating system level, when you login to Windows, MacOS, Linux, etc.
Ageless Linux intends to force the issue before the California state supreme court, then ultimately (probably) the Supreme Court of the United States (SCOTUS). It's a stupid, dangerous law, voted into place by legislators who either don't understand the core issue OR knowingly voted for it because they're assholes.
California is an influential state in the US. Many laws & regulations passed there eventually trickle out to most states. That's why it's worrisome to see this kind of thing rammed through, and why it's important to fight it.
Also, it doesn't matter if you use Linux or not. Or whether you live in California or not. Visit their site, read the text, learn what's going on with access to computing in this hellscape timeline.