He would rather be a plumber's mate and do a real job that requires doing than learn about hydrostatics sitting at a desk without understanding what probable use they are going to be. A girl would rather look for the baby than learn about child care. Logically we should learn about things before doing them and that is presumably why the pundits enforce this in our educational system but it is not the natural way-nor, i venture to think, the best way. The adolescent wants to do things first for only then does he appreciate the problems involved and want to learn more about them.