You could say that about a lot of things, though. Video games and TV were commonly criticized this way. And it was a popular meme on Reddit that people would be so addicted to the site that they’d spend hours scrolling it.
Criticizing tik tok is just popular on sites like this because people here really don’t like tik tok.
At any rate, parents can already try to restrict their children’s access. But governments are gonna have a hard time doing so without hurting everyone as a whole (eg, see the attempts of some US states to require giving your ID to porn sites). Dunno if you remember being a kid, but I found my way around every restriction my parents set and I just disliked them for it.