Formats like shorts or news feeds to you algorithmically with zero lag are the problem. It makes for the zombification of decision making. Endless content breaks people down precisely because it's endless. I think if you add age verification but don't root out the endless nature, you will not really help any young person or adult.
When you look at people with unhealthy content addiction, it is always a case of excess and not necessarily type of content. There are pedophiles but honestly, we have had that throughout all time, with and without the internet. But the endless feeding of the next video robs people of the ability to stop by mentally addiciting them to see just one more. And because content is not really infinite, endless feeds invariably will feed people with porn, eating disorders, and other "crap" in quantities that slowly erode people.