wish I could have thought of that when I went to school
... but then we never heard of nut allergies when I went to school
I was thinking the same thing. I'm not that old and I went to some fairly large schools when I was growing up. It seems like only the last ten years or so that we suddenly have all these kids who are allergic to nuts. I can't recall any concern over food allergies when I went to public schools during the 1970s and 1980s. nor can I recall anyone ever having an allergic reaction to food in one of my classes.
Now I'm not denying that these allergies exist but suddenly it seems to have become such a crisis that schools are banning PB&J.