There is a small percentage of the human race that will in fact enter shock and die if they ingest peanuts, or its derivitives. Had a kid at Miami University (Ohio) a few years ago die when he ordered chinese take out.
He asked if there were peanuts in any of the food, and was told no.
They forgot to tell him they were using peanut oil in the fryers. Kid died within an hour of eating.
The bottom line is if you are one of these 1% types, its up to YOU to avoid them. JMHO.
For the most part I agree with you but Airplanes are a special deal because of the closed environment.