Three young children huddle in front of a camera, cross-legged and cupping their hands. “Please support me. We are very poor,” says a boy, staring down the lens.They appear to be in a mud-brick hut in Afghanistan, living in extreme poverty. But their live stream is reaching viewers in the UK and worldwide – via TikTok Live.For hours, they beg for virtual “gifts” that can later be exchanged for money. When they get one, they clap politely. On another live stream, a girl jumps up and shouts: “Than...