I live in Africa and trust me when I tell you that people are actually waking up. In fact, if anything, bitcoin is probably much popular within the youth in these underdeveloped countries then in Europe because the need of an alternative of fiat etc. is there so people will eventually find bitcoin.
I ran some test with google analytics a while back (maybe 2-3 months) and found that there was a huge amount of searches in nigeria and some other sub-Saharan countries, do you know if there is a lot of adoption happening in those countries?
Also I think that Nigerians were paying a high premium for a bitcoin a while back just like koreans were during the huge run up in late 2017.
Yes, there is a lot of adoption in most of the African countries, and most especially the well known and giant ones. I was in some part of Africa lately, precisely, South Africa, Zimbabwe, Nigeria and Kenya, and I must say I was extremely impressed. Moving around, I purposely try as much as possible to spark up discussions about cryptocurrencies just for curiosity sake and I was amazed that a lot of the well educated people in Africa are so much enlightened on not just cryptocurrency but blockchain technology. Trust me mate, the believe most especially when I was in Nigeria was off the hook with the idea that this is actually a disruption and it is going to help change a whole lot of things. I met quite a number of different groups in these places and in different regions, and I won't say it was just a coincidence or luck that made me meet the enlightened ones.
In this case, I do not believe that at some point, a lot of people will still not get to know about it and with the way things are going, it might not be the whole Africa, as obviously I cannot just use 4 countries in Africa to judge, but at least from what I saw, the prospect in this places are there. With respect to Nigerians paying a lot, I guess you are mistaking it with Zimbabwe. For now, Luno seems to be the fast growing exchange, taking over these countries, and with Luno while in Nigeria, I was able to do some transactions myself, using a friend's account in this country.