I don’t doubt it. I drove a school bus for three years. The companies don’t give a fuck about anything but money.
Your route is literally impossible to do because of the laws of physics? Tough shit. Routes go over an hour and a kid has to pee? Let them pee their pants. Also, we’re going to pay you minimum wage while being responsible for a heavy vehicle carrying 30+ children in rush hour traffic. These are the problems drivers face. Its why they have like 300% turnover.