Which occupation was the most time spent in Spartan schools?

In the schools of Sparta, attention was paid to military training. This was due to the fact that the goal was to prepare warriors, starting from school, so that they could endure hardships, difficulties that await them on a campaign. After the birth of unviable babies, they were thrown into the abyss, the rest were left alive. Until the age of 7, they were brought up at home, and then they were taken to school, which ended their childhood. The boys often procured food on their own, plundering neighboring regions.