why the U.S. wants to give cash bonuses to ...?

Question

poor mexican families that keep their kids in school ( in Mexico )
if :

1. Mexico ain't the U.S.A.
2. Schooling ain't a problem in Mexico.
3. There's no jobs for those with diplomas and that's what causes illegal immigration.

Answer 1

US gives aid to Mexico because it is part of foreign diplomacy since Mexico is an ally of the US.