Yes, personal responsibility™ is the root cause here. Not corporations that have been making hyper addictive applications and maximising engagement for profit.

While I don't blame anyone solely, there's lots of blame to go around - solely blaming the parents doesn't hold up. Kids are ostracized if they don't have a smartphone, don't have TikTok, and don't have YouTube. It's easy to blame the parents, but it's unreasonable to expect them to know how to deal with new technology and how to enforce it with kids.

Probably an unpopular take here, but I think within a decade or so social media and technology will have it's "smoking moment" and be regulated harder. Probably some sort of age limits, protections for minors and enforced parental controls (like whitelisted channels, screentime, and such). As today it's pretty much impossible for a parent to see what kids are doing on these applications, and pretty much impossible for them to enforce it if they aren't in the same room.