To me the question is more
who is going to nanny me, and ideally its
myself (the mature option), but in my experience starting as a child and going into adulthood, mental health can break this down to where people
can't nanny/take care of themselves. In that case, the question at hand is: who is going to protect you from yourself? The state? Your family? Your friends?
Oftentimes the answer is "nobody". There's just nobody you can rely on to get the level of care you require. There are lots of arguments like Bowling Alone for how the breakdown of community has contributed to this separate issue.
In my view, by constructing and supporting legislation like this, people are implicitly admitting that parents, teachers, schools, communities, and all the rest are failing at their job of keeping moderation local and raising the next generation.
But the thing is, unfortunately this is a true statement in too many cases, including mine. My parents failed to parent me well enough, and my counselors were either instrumental in my own trauma or failed to address my issues soon enough, and as such I developed a sex addiction in adolescence fueled by persistent ongoing stress from my upbringing that I continue to seek treatment for to this day. Could content moderation laws have cured my parents' narcissism? Nope. Could they have prevented me from needing to act out to relieve the stress of my early relational trauma? Nope. Could they have helped match me with more competent therapists? Nope.
Could they have caused me to go to rehab for alcohol abuse instead of porn? Maybe.
For all his statements I disagree with, I subscribe to Gabor Mate's view that traumatized individuals are compelled to be addicted to something. At that point, there are a lot of things to become addicted to other than the ones you can content moderate, given the (false) assumption that it's possible moderate enough of it.
Pornography was necessary but not sufficient for me to have it that bad coming out of childhood. Early exposure to it was only incidental. My upbringing was far more significant a cause in this. But unlike which websites I was allowed to visit as a child, a 100% chance of having emotionally involved parents isn't something you can legislate into existence.
What I feel isn't being talked about enough in this discussion is that this implicit realization that the world just sucks sometimes leads to justification that someone else needs to step in to protect children's fragile minds if the formerly trusted institutions aren't. The big option left is the platforms and systems hosting the tech themselves so they're targeted instead.
My opinion? If your parents aren't able to raise you to be free of significant trauma spawning "hungry ghosts" that you will need to turn to your unfettered internet access to feed, whether TikTok or LiveLeak or elsewhere, lest you are bombarded by stress every waking moment... then the situation was hopeless to begin with. You can't fix that problem with laws. You should have just had better parents, as awful as that sounds. And because of nothing more than bad luck, you're just going to have to unpack that problem with the healthcare system for years/decades, because there's not much else we know of that can meaningfully address childhood trauma that severe.