I guess they have a crappy currency, even crappier than currencies like the dollar or the euro, and people get by as best they can. Apart from being extremely useful for the unbanked. That makes sense. From what I see on the forum, something similar is happening in Nigeria.
Unfortunately, life is not easy for people living in many African countries, and regardless of the fact that they have many natural resources and hardworking people, they are still mostly poor. I think that Bitcoin can be of great help here, primarily as a currency, since
people only need a smartphone with internet access and a BTC wallet.
The highlighted one seems to me to be the main problem for poor people in poor African countries - a very low standard of living that makes it difficult to buy a smartphone + Internet (additional expenses). Also, a fairly low level of literacy, especially technical, which will make it difficult to use the
BTC-wallet (correctly and safely). Also, smartphones remain quite vulnerable to storing bitcoin. Therefore, I believe that buying vegetables in Africa for bitcoin will not start very soon. And in general, I consider this something comparable to buying bread by paying with a gold bar.