[_AzMoo]

You don't necessarily need to actually attempt to globally enforce it. It's like speeding, right? Everybody knows the law, and a lot of people choose to break it. We can't check everybody's speed all the time, so instead we selectively enforce.

The real change though comes from parent's perceptions. Right now there's age limits of 14-years-old on most social media platforms, however most parents just see this as a ToS thing, and nobody cares about actually violating it. Once it becomes law, the parents are suddenly responsible (and liable) for ensuring their children are not breaking the law by accessing social media. It's not going to stop everybody, but it'll certainly move the needle on a lot of people who are currently apathetic to the ToS of social media platforms.

[Affric]

Not true. Only the social media companies will be liable. It’s an important part of the legislation.

[_AzMoo]

Yeah, you're right about the liability part. But regardless, as a parent of teenagers, being able to justify an unpopular decision with "it's the law" instead of "research shows it's potentially bad for you in the medium to long term" is extremely valuable.