The bathrooms are soooooo unsafe that children will hold their urine and feces all day rather than use the restroom. For the government, or parent, to FORCE a child into such an environment is child abuse. The government can get away with it. If a private individual were to do that to a child they would be arrested.
I understand that the reasoning is that it’s your own fault if you’re too timid to try to push through a line of older students, most of them smoking or sniffing something, to get to the toilet.