We know that if you educate a girl, as the saying goes, you educate a nation. That girl will get married later, she will have fewer children, she's more likely to earn an income, and that income is more likely to be plowed back into the family so that the family benefits.
Ethiopia's government is doing a commendable job of working closely with donors and humanitarian organizations to educate parents about child marriage, and to support organizations like the Hamlin Fistula Hospital.
If you educate a girl, you educate a nation.