A man from a primitive culture who sees an automobile might guess that it was powered by the wind or by an antelope hidden under the car but when he opens up the hood and sees the engine he immediately realizes that it was designed.
A few years ago kids from poor areas in France were asked to draw items of food. For a chicken they drew a drumstick. For a fish they drew a fish stick. Those are extremes but there is a lot that needs to be done to help children discover good food.