Help me understand Tik Tok

I get various video feeds on my Facebook account. Most are history ('I'm a history buffy). But some are Tik Tok videos of women, almost always Asian, dancing sexy. They are clothed (of course) but some have on skimpy shorts or are braless under a t-shirt. Is is just an ego thing. A woman can boast that she has a million, mostly men, admiring her body? Or am I missing something. There doesn't seem to be any money involved. What gives?

The platform is stuffed to the gills with attention-seeking idiots. Occasionally, someone will post a challenge video and invite everyone to copy it. This could be anything from jiggling their ass to a chunk of mumble rap, doing a synchronised (or otherwise) dance, trying to suck up a glass of juice through a toilet roll tube, or (very) occasionally something clever.

The best by far was the Grace Kelly challenge where someone built up 6 layered harmony parts of the Mika track. There have been some terrible attempts at it, of course, but also some absolute belters who nailed it (e.g. https://www.tiktok.com/@malindamusic/video/6991921362721918214 and https://www.tiktok.com/@nanisimo90/video/7007759223928982789).

Ryan Reynolds famously revived the challenge. That's seriously the top challenge of a handful of videos that are any good. The rest is utter, utter dross.