My whole family has allergies, so the fact that my daughter has allergies is not surprising.
However, there certainly does seem to be some kind of allergy increase in the general population. When I was a kid I don't remember anyone not being able to eat something because they might die.
I think there are two reasons for that.
One is that kids with those kind of severe allergies died younger.
I think the other is that if the child did die from allergies, it may not have always been known what the cause of death was.
It may have been written off as a choking death instead of anaphylaxsis.