I think you are sometimes too but on this point I'm spot on, pal. They're fads, like lactose and gluten free products. Mosr just jump on the band wagon and feel smug about themselves.
People need lactose and gluten free, not because they are fads but because without them they suffer a lot of stomach pain.
It's like peanuts, to some people, they are lethal.
Some types of foods have adverse reactions on some people, they are not " making a fuss"
I've known caterers just think peanut allergy is a fad, but it isn't, you can kill someone.
What you " choose" to eat can be a fad, but people who are allergic to peanuts, gluten or lactose have body that reacts adversely to something.
You can be allergic to just about anything, one friend of mine is so allergic to blue cheese her throat swells up and she has to be rushed off to hospital for an injection.
I'd never assume someone else's eating habits was just a fad, because it might not be.