Ah right so the issue isn't that Tiktok users who are in the main, teenagers, are doing stupid, sometimes dangerous, occasionally LETHAL stunts and challenges and people find that at best, disruptive and at worst, fucking scary.
Nooo.. the issue is we're unused to teenagers now and so are unreasonably scared of them.
Theres a reason people, adults and other teenagers, and younger kids, are scared of large groups of teenagers with a disruptive or malicious agenda.
Thats because historically, such groups have done horrific things, including killing people.
Its because from a psychological POV, a group will do things that the individual would not dream of doing, and a CROWD will go even further. See: riots.
When that group or crowd is teenagers rather than adults, things get even worse because teenagers are more impulsive, lack the frontal cortex development that makes us think before we act, reason things out and are much more likely to engage in risky, dangerous and aggressive behaviour.
Hell yes groups of teenagers who outnumber adults, in a darkened room, following an agenda the adults have no idea of, is fucking scary and to be avoided.
Yes it is absolutely sensible to stop that before it can happen.
If you think your teenager was 'just' dressing up, had no intention of scaring anyone or disrupting anything they were just having fun, you are seriously fucking naive.
Even if they set out with no intention of anything unpleasant, they still wanted to be a part of something, they still wanted others to think they were associated with whatever was going on, they still wanted to be identified as 'in this group'.
Who knows WHAT they would have done if they'd got in, if it had all kicked off, if things had turned nasty - you don't know, I don't know, THEY do not know.