One of the things I've urged the company to do over the course of the last several years is parental controls. My kids use TikTok ... What I want to be able to do is set effective time limits ... TikTok has incredible video content in math and science and history. I want to be able to set a slider and say 20% of the videos that get shown over this 1-hour period have to include some of these math and science videos for my 12-year-old.