Your wish is granted and the concept of public education, teaching, and school is wiped from the human collective mind completely. Now complete nations are dumbfounded and can't even spell their name, let alone read the street signs to find their way home. The world collapses into a giant booger eating, slack jawed, fart sniffing, simple minded twirling rock, third from the sun. Thanks a lot.
I wish for one more wish. Then I'd wish for a tasty sammich.
I wish for three wishes. Using those wishes, I wish that everyone was born intelligent, making school obsolete and solving several other problems around the world. I wish that the world's resources were renewed, and I wish that I were rich :3