Africa is not a single country. There are more than 50 different nations and the laws and regulations regarding Bitcoin can be different for each of them. From what I have heard, sizable markets exist in three of the African nations - Nigeria, South Africa and Kenya. So as a first step, we can concentrate on these nations and later expand to the others.
Nigeria especially, they have really adopted bitcoin and there are lots of bitcoin traders and investors there. It’s been a long time that people there accepted bitcoin and I can remember that Luno even has their location there.
I haven’t heard or read much about crypto in other African countries. I have been seeing some interesting things about bitcoin happening there, some people even has the work of buying and exchanging bitcoin or any other type of cryptocurrency. There’s no place that is bad for cryptocurrency as long as the government allows it there. Cryptocurrency is decentralized and everyone is free to make use of it as long as it is allowed there in their country.
I don’t even know what made OP thinks of this kind of question, there are already lots of people making use of cryptocurrency there in Africa and lots of countries there allows the use of it. There are technologies there as well, though they are still developing, but there are countries there that are developing fast.