I understand the hesitancy to government control, but at some point, what other mechanism is there? I'm seriously asking.
There are many mechanisms we can rely on, like teaching someone the tradeoffs of a dangerous decision.
Part of the problem of laying it at the parent's feet is that there's a much larger than zero chance the parent(s) also shows addictive behavior. To quote the after school special, "I learned it from watching you, all right?" I still go back to the fact that the addictive thing is being intentionally manipulated to increase the addictive properties. It is not natural. It is the thing in and of itself that is the problem.
I don't know of any viable rehab potential for social media. I can only imagine the relapse potential would be closer to 100% than for any other drug.
The parental controls the platforms put on there are non-existent or a mere joke at best (as the recent post about TikTok suggesting porn to minors illustrates). So a parent trying to do things then gets accused of "damaging" their kid by being over restrictive. So, again, what's a parent to do?
But plenty of parents are addicted to TikTok as well. In which case, wouldn't surprise me if they think the kid needs it too.
The biggest con economists ever pulled was to model people as "rational actors" and then generate an entire worldview off of "if everyone acts in their rational self-interest then this works great."
People are almost fundamentally irrational. People are guided by emotion and superstition and a bunch of weird shit that makes it easy for them to get addicted to things that have little to no societal value. If not a government, what force should counter balance that?