The problem is that people there don't have jobs and infrastructure to create jobs. Without jobs there isn't money and without money there isn't bitcoins. I don't know if media is luring us about Africa, but all I see is a lot of poor persons doing nothing all day long,
Oh, I see, you are a true Africa expert.
Most people do actually work there, and they work a LOT, for no (subsistence farming) or small salaries. In some countries like Equatorial Guinea and Zimbabwe there is a greedy elite scamming the rest of the population, but there are also relatively well-governed countries like Ghana, Rwanda, Senegal, Botswana and (with reservations) Ivory Coast and Nigeria where the economy is growing and Bitcoin also is doing relatively well (although it's still in its infancy there). Ethiopia is other country with a large potential, its government is centralized (their "federalism" is a lie) and authoritarian, but they're economically doing pretty well and it could be "Africa's China".