Children are living beings - more living than grown-up people who have built shells of habit around themselves. Therefore it is absolutely necessary for their mental health and development that they should not have mere schools for their lessons, but a world whose guiding spirit is personal love.
It is among the commonplaces of education that we often first cut off the living root and then try to replace its natural functions by artificial means. Thus we suppress the child's curiosity and then when he lacks a natural interest in learning he is offered special coaching for his scholastic coaching for his scholastic difficulties.