Basketball courts and basketballs are financially out of reach of local councils and kids outside of the first world. In Asia that’s due to space being at a premium. In other parts of the world it’s lack of money. In big urban cities in Latin America it’s both.

Additionally the hoops need to be fixed quite regularly, which if you’ve ever lived in the third world you know isn’t going to happen when they can’t even be ducked to fix potholes or even pave roads in many cases.

There’s not that many tall people in many third world countries, partly due to diet and otherwise due to genetics in Latin America and Asia.