How did spartans educate their children?

Male Spartan children were sent to military school at the age of six or seven

Girls were trained in their sisterhood, and were taught physical education

Spartans believed in a life of 'discipline, self denial, and simplicity,' and so the purpose of education was, simply, to produce an army. When babies were born, soldiers came to check the child. If it appeared healthy and strong, they would be assigned to a 'brotherhood' or a 'sisterhood,' however if the baby appeared weak and small, the infant would be left to die on a hillside or taken away to be trained as a slave. It was 'survival of the fittest' in Ancient Sparta.

An informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.