Very interesting Suzie QRoo!
My opinion is that a picky eater is
MADE.
It is a result of packaged and frozen food. This type of food stems from our fast-paced society where both parents are working and little time is left to prepare meals etc.
I came from a family that said "what you don't like the food mom made for you? It is all good, natural, and it is good for you! You can eat it now or you can go to bed hungry!!"
Children are taught to eat! It should be said however that there are foods that produce allergies etc or foods that just do not agree with our systems for one reason or another. I, for example do not like chicken that is on the bone. I get a taste in my mouth that affects every cell in my body, a kind of sensation. Allergie?? perhaps not but definately some kind of reaction.
I have always eaten home cooked meals and even pack them for lunch. The other day I had small packed lunch and had to buy something else. I went into McDonalds

and though I would try the "chicken wrap" "At only $1.39!!" (commercial echoing in my head). It was the most bland, tasteless, textureless thing I have ever eaten!!
I came back and told a co-worker (she lives on frozen, packaged food) and she said "Ohh I Loooove those!!".
I was in shock.
Good food is something you have to learn. You learn frozen and tasteless, and that is what you will consider good food and you will reject the rest. You learn good food starting at home as a child, in the kitchen, with mom and grandma, Not in the freezer or microwave. Home cooked food is the foundation by which you expand your pallet as you grow up.
.