The introduction of crypto to African countries would further worsen their state of finances as most governments of theirs would find ways and means to jeorpadize the features of the technology just to satisfy their greed. In addition, most african countries have very low literacy rate and one common theme in crypto investments is doing your own research. So how do you expect countries with very low literacy rate to conduct background researches into some activities in crypto.
l am not sure what Africa you're referring to, but it's incorrect to throw a blanket over a whole continent and make rash conclusions. There is a burgeoning middle class in Africa that is adopting all the latest technology and thriving at it too. Yes, levels of literacy in some areas may be low, but only people who are willing and able to can adopt crypto. Hence, it doesn't necessarily translate to worsening conditions on the continent. Besides, how much research do people from developed countries or 'high literacy rate' countries actually do?