Bitcoin is a digital currency that operates on a decentralized system and has gained significant popularity in Africa in recent years.
Bitcoin has the potential to play a significant role in Africa's economic development by providing financial inclusion, reducing remittance fees, creating new business opportunities, and increasing transparency and accountability.
You can also add the following reasons, in my opinion,
(a) devaluation - the dropping of the value of Africa's fiat
(b) political instability - this could drive Africans to somewhat look for a better option to hedge their wealth.
(c) broken financial system - just like what we are seeing right now, banks are collapsing, and so they will have to moved their money somewhere else and most likely it will be BTC.There is a also a good blog report by Chainalysis:
How Cryptocurrency Meets Residents’ Economic Needs in Sub-Saharan Africa. And if I'm memory serves me right, Jack Dorsey, Twitter founder and his company Block Inc, has been pushing Africa to be a Bitcoin mining hub with renewable energy.