This is either a old man yells at clouds situation or gatekeeping masculinity situation depending on the meaning of the word man. Either way a bad take imo.
Sure, this interpretation falls in the old man understanding of tiktok, someone who has never been to tiktok.
Current day tiktok is full of people of all ages and the feed adjusts to your interaction with the platform, so you won't see a single kid unless you specifically take actions for it.