The most important reason is distance, coupled transport difficulties. Then there is the labor: Children must herding or working in the fields, etc. There are also cultural issues, girls often stay home. But the most dramatic result is war.
What is the future of a child who does not go to school?
He will not have as many opportunities as others of finding a stable job. The school learns more fight in the world of work. She also learns to live in relationship with others.