This is so much the wrong approach that i can't even imagine how fucked up these politicians have to be in their minds to enact such crap.

The people that need to be restricted are the evil guys, not the good guys.

This means that social media platforms have to be held responsible if they do not have effective mechanisms to prevent groomers from harassing minors. (I would cut some leeway for new exploits and such - unforseen problems should not instantly doom a platform, as long as these are fixable)

Isolating your youth from important communication streams will only cause problems the moment that they are of age and completely naive - and this is exactly what this legislation is achieving.