Again, speaking from personal experience, (sorry!) when I got chased off a train, I didn't tell the school. My mum was a single mother at the time and the last thing I wanted to do was tell her anything to upset her. So I get why he didn't, who wants to admit it would happen?

And that's a great point. If he reported it, his mother would have been investigated and he'd have been taken away. I wonder if that would have been better for him.