So everyone should be restricted from doing anything that might cause an allergic reaction in anyone?
Why do many public places, airplanes, etc. restrict certain products now?
It is probably not sane to take an all or nothing approach, but it is certainly better to take a personal approach NOW, than to have the government take a kneejerk response next Thursday afternoon.
If it were simple to determine what potential allergens any person had an issue with, and when they may run into those, I suspect most people would take that route.
I strongly dislike having issues with foods and scents, TRUST ME it is more a pain in my .... than yours.
Sometimes walking into a bakery to get a cinnamon roll is something I can't safely do because of the lemon tarts just removed from the oven.
I can't taste the awesome desert or dinner my wife just ordered because the risk is not worth the potential trouble.
I can't just full face enjoy a sniff of a new perfume or cologne etc. because again, the risk ratio is a bit too high.
Then there is the fact that I **LOVE** citrus, and it hates me with a potentially lethal passion.
However I am old enough, and have had enough experience that I can tell in advance when I am likely to have an issue, and be appropriately cautious.
To be honest my mother spent most of my life forgetting that I had an issue with citrus at least once a year. This is partly due to the fact that as a child the allergy was an annoyance, and one I played loose with, what kid wants to be the only one who can't have a pink lemonaid, or a grapefruit with a mint candy straw at the fair, etc.
I was 19 years old before it became serious business, possibly because of those previous years of playing loose, possibly because of a back injury at that age, possibly because I was older, even the doctors were a bit puzzled at the time.
How can a 5-6 year old who has possibly never been exposed to an allergen, and or does not have enough experience to recognize when they are going to be potentially in a trouble zone, or their parents who are probably terrified of an accident, be expected to sanely and rationally avoid all trouble zones?
Again "all or nothing" is a bad approach, however erring on the side of caution, and awareness of ones surroundings is a solution everyone sane should be able to live with.