Fussy eater

I think most of the fussy eaters are children, because their parents will bear them and cook some food that they like to eat, but when they grow up, they need to having meal with their boss and friends, ifthey are fussy eaters, then their impression of their boss and friends will bad, so I think when they are grow up, they won't don't eat everything anymore.
I think I'm not a picky eater, because I haven't lots of food that I hate to eat, even there have some food that I don't like to eat, but I never don't eat them.But there is one foon that I hate to eat, it is onion, because I think it is disgusting and lots of dishes are add onion, so I will take away the onion when I eat the dishes.