In Kenya I think electricity is the first problem, if you have electricity you can have computer
There is technology already to run a node in an old first generation phone, as long as it has SMS capability it's good to go, and a battery for such a phone is easily charged thanks to the sun, and there's plenty of sun in Kenya all year long. So suddenly a single SMS phone is an entire bank for a village, and it has only begun. This is why BItcoin will change the world.