I have a child with a serious nut allergy who is going on a school trip away, by coach, in the next week.
I have my head in my hands here as I sincerely hope I am not the parent of the child you are complaining about, as it scares the life out of me that your child could be on that coach and not take on board our issues.
It's incredibly serious. When we travel abroad we have to inform the airline. We also only go somewhere where there is a decent hospital nearby and we hire a car, whether it's needed or not, so we could potentially get to the hospital quickly.
And we do all that when we are WITH our child.
Imagine how nervous we are to finally allow them to travel without us!
It's only now they are getting older that we are allowing them to because they are aware of what they need to be careful of.
However, reading something like this worries me so much as you sound like a parent who could send their child off on the coach with sweets and chocolates containing nuts without taking the matter seriously!