The difference with peanut allergies is they react to the skins and crumbs which have a tendency to get airborne while eating, so people eating peanuts nearby present a real danger to the person with the allergy. If beer puts its allergens airborne your situation would be very different.
I am VERY aware of that fact. I was just trying to point out (to all) that we are all different and someone saying that other people are manufacturing allergies because their own kids don’t have them is ridiculous!