You can carry with a locked and loaded weapon open and concealed.
And people have all kinds of personal reasons for open carrying.
Georgia Gun Laws in Plain English on GeorgiaPacking.org
I have just started carrying open as of yesterday because I like the idea of having the .45 for protection over the .380
RIA 1911 vs. Bersa .380
I also open carry to deter wanna-be thugs in my my area from trying to rob me like every single one of my close friends has been.