California has passed a law that requires operating system providers, as well as application providers, to verify a “users” age before allowing them to use the OS or application. Companies like Apple, Google, and Microsoft already have an infrastructure in place to comply with this. The 600+ Linux distributions do not. Nor can they afford to implement one. Same for all the independent application developers.
Ageless Linux pointedly, and rather adroitly, shows that the true purpose of the law is not to protect children. The point is a law enforcement mechanism to be used as a cudgel at the sole discretion of the Attorney General.