If you forcibly isolate an entire generation from influences that they are bound to encounter later in life, you are doing them harm by preventing them learning early how to cope.

“If we are going to eliminate peanuts, and another child is allergic to hazelnuts, and another child is allergic to milk, and another child to [Instagram] — there’s no end to this,” he says.

https://www.npr.org/sections/health-shots/2010/11/12/131279854/allergy-expert-says-peanut-bans-are-an-overreaction-to-food-allergies