i'm going to call myself 13, which is the youngest age you can officiallyjoin, though many social media users are much younger than that. i've got a fresh device, so the algorithm can't pick up any data trail. and i am going to start scrolling. within minutes, the algorithm has picked up that i'm in scotland, and then glasgow. as a 13—year—old, i'm presented with this pop up, saying that my account is private. it doesn't change what i see, but it limits who can see any videos i post. and then another pop—up. this one nudges a 13—year—old user to help keep tiktok make money, by keeping personalised ads switched on. last year, tik tok�*s parent company made £25 billion. this lawyer says the whole point of keeping people online longer is it allows platforms