Most kids are picky. Do you make your kids eat anything? Did your parents make you eat anything? I never force food down her throat, if she makes faces or doesn't want to try something, she doesn't have to eat. Nothing I serve/order is so disgusting that a person can't chew and swallow one bite.
I put a small amount of everything I cook (starch, meat, veg) on the plate and dd has to eat everything there before she gets seconds. But I don't put anything on the dinner plate for normal dinners that she doesn't like. (ex. she doesn't prefer salad, but will eat kale, swiss chard, bok choy... so I just don't usually make salads with dinner, or if I do, she gets a different veg. or just a few leaves of lettuce)
When we go out I often order something out of the norm, or when we go to other houses she has to try a "no-thank-you" bite.
I think kids are conditioned to eat "kid food" and I don't buy into that. SD has champagne tastes but often won't eat what she orders. If DD orders crab she eats the whole thing, because it's what she really wants, not because it's the most expensive thing on the menu.