Why only TikTok videos. Other contenders are Instagram reels, Youtube Shorts, Snapchat, etc.

BTW its Social Media as per studies

https://pmc.ncbi.nlm.nih.gov/articles/PMC12329480/

Whole bunch of research,

https://pmc.ncbi.nlm.nih.gov/search/?term=Social+Media

But, my point is its normal Every generation behave differently. We shouldn't judge it even via these studies.