TikTok is not as harmful as drugs (at least I haven't seen anyone end up on skid row over watching too many dancing videos). So if it's to be regulated it would likely be similar to porn or gambling and be age restricted.
OP is clearly an adult capable of making their own decisions, so this regulation wouldn't help them.
So what is your point?
In many countries gambling regulations go beyond age restrictions and companies evolving in that space have to provide safeguards to prevent certain behaviors. I don't think it's far-fetched to imagine similar regulations for things like social media, at least it's a real possibility that exists before simply banning everything.
Yes we shouldn't ban everything, but there's a large spectrum of acceptable regulations with different tradeoffs and it's fine to discuss what your society wants in that regard instead of precluding any kind of regulation.