There is also an actual gluten allergy that a few people have (much more rare than Celiac), which would be a good reason to avoid gluten. Of course, like Celia

There is also an actual gluten allergy that a few people have (much more rare than Celiac), which would be a good reason to avoid gluten. Of course, like Celiac, it's the kind of thing where the symptoms are really obvious and you know if you have it (e.g. anaphylaxis last time you had a piece of bread).