How did you find that? Or you just saying that because of trading platform?
Maybe there are crypto adoption but I don't think it causes the prices to increase.
I think it's a way to have more visits to that certain exchange/trading platform that the OP is including.
I hope the OP could provide a news source or something factual that could correlate to his conclusions. I'm just curious also to what extent is Africa capable of usage of crypto, I think with the majority of 35% of internet users, I think they could really apply cryptocurrency as a form of payment. The real application begins.
https://www.internetworldstats.com/stats1.htm