My son just turned 2 and I've been thinking it is time to start teaching him about food. I wanted to see what his "baseline" was for what he considers to be good food so I set him free in the grocery store and just followed him with a basket. In 20 minutes of wandering he grabbed salmon, shrimp, trout, crab, a jar of caviar (I put that one back only for budgetary reasons), a big carton of strawberries, beets, carrots, basil, bananas, apples, butter, milk, and cream. Some of it could have been "monkey see, monkey do" but he had never seen a crab before(at least in the context of food).
I haven't been trying to keep him from modern foods, he eats cereal and bread when other people are having them, but he didn't show any interest in them at the store. I was convinced it was going to be all gummi bears, cereal with cartoon characters, and juice, but he surprised me, hence the question.