He learns it is fine to speak to someone with harshness and contempt. Kids have no privacy. Children learn to be uncomfortable with being alone. They have problems taking initiative without asking an authority figure what to do. There is no time for the child to discover what he or she loves.
All time is taken up by what others deem to be useful or appropriate.
One child I know of always had a messy desk and had trouble writing neatly. The teachers were always reprimanding him for this. One day he asked me if he could read a book to me. We sat in the corner while he read perfectly from The Lord of the Rings. He was 9 years old.