From being an Openstreetmap evangelist and trainer, I can tell you that most people in the world (not an Africa-specific thing) have close to no idea how to position themselves on a map... Which by the way is why turn-by-turn navigation is so popular.

FWIW, if people can learn to use a cellphone and order things online, they can learn to pin themselves.

Regardless, I understand and agree with your point. I just think difficulty with pinning on maps[0] limits its adoption vs. actually eliminating it.

[0] reasoning about maps in general is difficult for many people, not everyone has well-developed spatial reasoning.