Nut allergies(including peanuts) used to be rare — or so it seemed. But my husband has severe tree nut and peanut allergies and he is now 80. At the time he thought he was a wierdo having them. He went thru the school system and was able to take care of himself by using his head. No one had to change their behavior. No Epi-Pen then.
And my daughter, now 49, has both peanut and tree nut allergies, —— and fish and shellfish allergies. She too learned real early in life what she should do to avoid a problem. I’m sure the school was full of PB sandwiches and brownies, but she was the one who adjusted. No Epi-Pen there either.
Sometimes it's like this ~ my nextdoor neighbor is this insufferable screamer ~ and she's deathly allergic to bee stings. So, do I kill the bumble bees that live on my property, or talk to them gently and encourage them to propagate ~ even, maybe, grow wildflowers they particularly like?
Neighborliness has real limits. So do nut allergies ~ which is why the person with the allergies really needs to avoid dangerous situations.