Peter Gray said this quote
“ Schooling that children are forced to endure—in which the subject matter is imposed by others and the “learning” is motivated by extrinsic rewards and punishments rather than by the children’s true interests—turns learning from a joyful activity into a chore, to be avoided whenever possible. Coercive schooling, which tragically is the norm in our society, suppresses curiosity and overrides children’s natural ways of learning. It also promotes anxiety, depression and feelings of helplessness that all too often reach pathological levels. ”