These are young kids we're talking about. I'm not sure what sort of Darwinian nightmare some of think you want to live in where allergic kids that accidentally eat peanut products deserve whatever happens to them. I don't think giving up peanuts from 8 to 3 on weekdays is such an enormous price to pay for the safety of others.
A 6 year old kid who is allergic to peanuts probably knows that she shouldn't eat peanuts or a peanut butter sandwich, but what about one of these?