In Africa Internet is not everywhere, plus many people do not have computers, therefore crypto future for Africa do not exists. African people are welcome to move to Europe ( Spain, Italy etc. ), where electricity and computers are everywhere. 
There is most certainly Internet all over Africa. Of course, not all people have the internet in Africa, but the numbers are increasing every day. Maybe you should visit Africa before you start saying thing like that. When I was in Kenya everybody was already using an electronic payment system. I can't remember the name of it, but you could pay with it anywhere. The money was just attached to your phone number. This way people could go out and not worry that somebody would steal their cash. This isn't a cryptocurrency, of course, but it's electronic, and that shows that it's possible in Africa too.