Africa is a poor country, in which there are a lot of problems, as in the economy, in the environment, in education, etc.
No, it is not. And I'm not talking about poor but the fact that Africa is NOT a
country.
And from this come a lot of problems with this thread.
For example:

No, it's not Japan, it's Morroco.
And there are some other fun facts, like Gabon having a better GDP per capita that Serbia Thailand or Indonesia.
Again another fun fact is that South Africa has more internet users in % of the entire population than.... China!!!!

Considering Africa as a whole entity, putting together South Africa and Liberia, Niger and Nigeria and talking about adoption overall is a mistake, just as you can't lump together Moldova and Portugal or Belgium and Belarus.
Some of those countries in Africa can already adopt cryptos, some will probably not be able to do it even by the end of the century. Some have 4 lines highways some have only dirt roads, some have created multi-billion companies some have never used the word billion other than in math classes.