It's been over 40 years since I last stepped onto a school bus, but it was always a raucous place, requiring bus drivers to be fairly strong authority figures to keep the kids in their seats. I wonder if it's like a tomb now, with all heads bowed over their phones.
I can't even begin to imagine the hell that telepathic like electronic message services provide children in these environments. It was bad enough when there was at least the possibility of moderation by adults.