Kids and other people are not induced to challenge and question.
Humans are distinct from all other organisms because of the system of language.
There is a rich, complex human nature. Learning doesn't achieve lasting results when you don't see any point to it. Learning has to come from the inside. Any good teacher knows methods of instruction and range of materials covered are matters of small importance as compared with the success in arousing the natural curiosity of students and stimulating their interest in exploring on their own. Everyone should be educated.