bitcoin is a future digital currency, i strongly believes that before BTC celebrate 50 years in existence at least one or two African countries is going to legalis it. because block chain network is expanding every day by day. and most of the countries in Africa have the knowledge BTC how it works.
The way Bitcoin is gaining popularity, Bitcoin will be legalized not only in African countries but also in different countries of the world in the distant future. Countries that oppose Bitcoin will also legalize Bitcoin at that time. But it seems like a bitcoin revolution will start all over the world and people all over the world will start using bitcoins instead of paper money. But even if my country Bangladesh cannot legalize Bitcoin, the people of my country will be able to use Bitcoin spontaneously.