Have your kid wear a mask if you're that worried about it, Michael Jackson!!
Righto. Put a tyvek suit, gloves and a respiratory on the kid. a whole lot more likely to be effective that exhortations to people not to eat peanuts.
What’s she going to do about the person who just ate a bagfull in the lobby before getting on the plane?
Maybe I’m missing something, but there are a whole bunch of things people are severely allergic to, but you only hear about activists for peanut allergies.