I have never been to Africa myself but the Americans I know that have said it was not that different especially depending on where you are from in the states. The Africans that I know that have moved here say that it is not very different beyond the type of things you mentioned, but again that is no different than say the difference between being from the Northeast and being from the South, especially a few years ago. The types of things you mentioned also would be the difference between a Mexican American and someone from Mexico. It is not a greater difference.
I suppose we'll just have to disagree on that particular point then.
With regards to this Black Panther mini-series... I think I'll be passing on it, as I said before the art's nice (despite the animation), but the dialogue seems awfully anachronistic. That said, I'd love to see BP on the big screen!