I don't think it is a win, I'm not sure how you got that from my comment. There should be enough room for nuance to acknowledge that the internet is uniquely unhealthy for young people. I don't find 'I saw all the bad stuff and look how great I turned out' very compelling.

If empirical research showed that some kind of intervention would be helpful, I'd be in favor of it even if it comes at a cost. But I don't think age-gating will prove effective as an intervention. If anyone needs to be reined in, it is tech companies that exploit attention and gather data, and the age-gating controversy is a costly distraction.