They are in a dedicated bus for their school, and in school uniform...
Govt paid bus drivers are continually complaining.
When I was at school, the bus Co. refused to service our run for a week due to kids letting off fire crackers in the bus. School willingly sent home letters to parents, informing them of the issue, and that the service was withdrawn...sort it out.
I actually "failed' my interview to the school in question in the day, as they didn't appreciate me (the customer), questioning them on their science and maths programmes, when it was supposed to be them interviewing me...then tried to intimidate me with unless MY attitude improved, I would not be considered further...
No loss, went to the bully free state school, and graduated in top 4% of the state, and ended up in one of the top 3 engineering schools - best for practical engineers, year ahead of us was doing FE on boeing cargo doors.