Here is a 2016 report (see link in this CNN story)
https://edition.cnn.com/2016/01/19/africa/africa-afrobaromet...
that found:
"In Africa, less than one in three people have a proper drainage system, half of the population live in areas without paved roads, and only 63% have access to piped water. Yet, 93% of Africans have cell phone service."
Over the course of the next five years, 4G and 5G coverage in Africa will likely cover 95% of the population.
The really strange thing about Starlink is that there really seems to be no business case. It seems almost like it's based on taking the half-assed broadband coverage in the US, and extrapolating to the rest of the world by assuming it must be worse.