I agree there should be an adult monitor on the bus.
A driver who needs to focus on the road can’t give proper attention. I imagine it must be very stressful to be a driver, having to keep to a very tight schedule with unpredictable traffic, tardy parents/kids, and deafening noise and chatter.
If a child throws something out a window and it hits someone, into whose hands is the liability placed??
Probably the bus company.
To a certain degree mischief is part of childhood. Isn’t there a story about the Chafetz Chaim when he was a little boy that he and some friends filled the buckets of the water carrier at night (as a practical joke) so in the morning it would be frozen? Immediately after he had tremendous regret and did teshuva.
I think what’s relevant is the misbehavior, chutzpah and mischief keep going. There’s no internal accountability and ineffective external accountability.
We’ve failed to teach our children what it means to be good people and that it’s important all the time.
Maybe we don’t know either.