With childhood mortality extremely high, families in S.Sudan tend to bear many children. It then falls on the young girls to be caretakers of their even younger siblings. That's one reason (among many others) that girls have less opportunity to attend school. They are home--not alone--but taking care of their brothers and sisters. It is not unusual to see a 5-yr old caring for several younger ones. That's just how it is if you are born female in S.Sudan.
Mercy Beyond Borders funds a weekly radio program in S.Sudan promoting girls' education and raising awareness of the long-term benefits for families when they allow ALL their children to attend school.