It's not about making sense

I was trying to think... Observant synagogues are easy,as a kosher kitchen keeps meat and dairy strictly separate. Having pre-printed cards with "allergen" check-offs (peanut; soy; dairy; tree nuts; wheat; gluten; etc) would make it easy for people who don't want to write out an ingredient list. There will be mistakes ("I didn't know Graham crackers were wheat, aren't they made with Graham flour?"- this really happened in my life) but will increase awareness with less bad feelings to get in the way.