There are quite a few folks here who claim they are so sensitive that they can't eat anything from a facility that also processes wheat without getting a celiac reaction.
I am sure there are kids with peanut allergies who are just as sensitive. And with the potential for kids at school to trade lunches or desserts, plus the potential for kids to not wash their hands before touching their own food and after touching other kid's food or hands, it is only common sense that they MIGHT react. And with peanut allergies being so deadly in some kids, I can understand and even applaud the rule at this school.
Don't we all wish there were rules like that in place for gluten? And although gluten can kill us over the long term, peanuts can kill a highly allergic person instantly. If one mother MIGHT be spared the heartbreak of losing a child due to peanut CC, it is all worth it.
IN MY OPINION.