Its not just the youth who have demanding/irrational food issues. Anyone <60 is at risk to have a crazy belief about what they can eat. I think most of it stems from bad education, especially in science. People do not know how to decide what is true, so any crackpot claim from the shameful Dr. Oz is taken as worthwhile and any blogger is believable. The level of ignorance is staggering. I know otherwise educated people who have celiac dz and avoid anything with glutamate in it on the grounds of it being a gluten! The only similarity of course is in spelling, not chemistry or structure. I could go on forever.