If you read this thread you will find I have answered all your questions.

If adults can't grasp the reasoning and nature of nut allergy and it's effect on a child's health and education it shows us why schools and airlines are in part banning them.

Unlike your friend a nut allergist can not take medication to prevent a reaction. Do you genuinely believe that children should be expected to be pumped with adrenaline and rushed to casualty instead of being in a classroom?