Answer of the question raised here, lies in Jean Piaget's systematic study of cognitive development. According to Piaget, children's thinking differs in kind from adults than in amount. Before Piaget's work, the common assumption in psychology was that children are merely less competent thinkers than adults. He showed that young children think in strikingly different ways compared to adults. According to Piaget, children are born with a very basic mental structure (genetically inherited and evolved) on which all subsequent learning and knowledge is based.