I think there are a couple of differences with TV or video games or prior technology. The first is that with prior media, it's produced by giant media companie

I think there are a couple of differences with TV or video games or prior technology. The first is that with prior media, it's produced by giant media companies who are averse to being sued. I can't recall a TV show ever encouraging me to choke myself until I passed out, or make lichtenberg figures in wood, or etc. There's only a few TV producers; the message can be sent with a few lawsuits. TikTok is taking the line that they aren't liable for content others upload, so you'd have to sue individual content creators. Good luck with that, especially when some of the producers are teens, who are in never-ending supply and not prone to following rules. The second is that there hasn't historically been a reward for doing dumb things someone sees on TV. You might want to do a Dukes of Hazard car jump, but the reward was basically just personal satisfaction. There was no credible chance that doing it would land someone a spot on the TV show. Tiktok is different; I can see how a child would think that imitating Tiktoks could credibly allow them to become a top Tiktok-er. It's the difference between Jackass movies starting with "These people are professionals, don't try this at home" and starting with "Send us your videos of imitating the stunts, and we'll pick the best to be in our next movie". I don't think TikTok is inherently evil. I do think the current structure is a bad fit for children, who generally understand neither the dangers of thoughtlessly imitating someone, nor the likelihood of them ever being famous. It's in the same vein as those home improvement loans that become part of your mortgage; it's fine to sell them, it's not fine to sell them to people who don't understand what they're signing up for.