I'm curious to what degree TikTok could be used to detect precrime. Once a person turns 18, he must pass through The Video Room. After he swipes through videos

I'm curious to what degree TikTok could be used to detect precrime. Once a person turns 18, he must pass through The Video Room. After he swipes through videos for an hour, investigators can predict his cognitive, sexual, and criminal future. He gets sorted from there. Assume a likely future of increased crime and weakened human rights laws. And assume likely future advances in recommendation algorithms, auto-generated material, pupil dilation trackers, heart rate and skin temperature monitors, etc. This is possible now. What's stopping it from being widely used? How many checks and balances are we away from this?