Actually, I think the line in my post is correct, I was specifically referring to this happening in Africa and I am not aware if it happens in other countries.
I think what he meant is that your phrase implies that Africa is a country.
You're right! I'll make the change.
While we're on the subject of nationalities -- "interested in" is pretty clear for people in the UK too. I imagine Irish people, Canadians, Australians, New Zealanders, and many South Africans also know what's meant.