My cousin is severely allergic to peanuts, to the point where if I had eaten peanuts within a couple hours of seeing him, he could have a reaction. He's also had reactions from peanut oil residue on tables.
......I'd rather have a peanut-less plane ride than travel next to someone going through anaphylaxis.
What if someone were to have an anaphylactic reactions on the plane in a 4 hours flight? The epipen would give you an extra 15-30 minutes to arrive at a hospital, its used to stop the reactions entirely. I don't know what kind of jet service you use but it normally takes a longer time just to land the plane and by then the person could have died.
(2) systematic and widespread banning of peanuts, thereby eliminating early exposure to them, seems fairly likely to increase the likelihood of more children developing peanut allergies. So you care so much for your cousin's plight that you would subject more people to it, just to make a point?
Actually, after reading some of the posts here, I change my stance on this. It's strange at an internet forum, right?
Banning peanuts from a 4 hour flight isn't going to cause children to develop peanut allergies. I'm sorry, but there are far more hours in a day, days in a week, weeks in a month, and months in a year for children to be exposed to peanuts. Nobody is calling for a ban in all public spaces. An airplane is a closed space where you really can't just get up and leave, or possibly go to a hospital if someone has a nasty reaction. In a restaurant, it would be different because if they feel something coming on, they can leave. If it's too late, they can be taken to a hospital if the reaction is severe.
I think we can all make that sacrifice for a few hours.