u/No-Cartoonist7886

Dumelang. This may be a silly question but I was wondering how common usage of mma and rra are in everyday life in Botswana? I really enjoy reading the No. 1 Ladies' Detective Agency series, and I do take it with a grain of salt since I know the author is just an old white guy who lived there for a while, so I was curious how accurate it was in its language use and greetings and such?