I got that option and had to think about it. I picked Draenor since they asked of my origin.Thought that was interesting.
Maw Walker. You will get called that a bit. You were in the Maw and got out. Therefore, you are a Maw Walker. But you are right, it does sound like Mall Walker lol.
Bastion is really similar to mac'aree btw
I don't understand where everyone gets the idea Draenei are infants for thousands of years. The only source that ever said anything on the matter was the old RPG, which suggested 26 was the Draenei equivelent of 18. That is noticably slower sure but they grow up reasonably fast. The reason they aren't super populated despite living forever and growing up relatively fast is because they are incredibly infertile. Like REALLY infertile, to the point that it's honestly surprising how many children you see in the Exodar, considering as far as I can tell you would see maybe one success every thousand or more "attempts"
Baroness Vashj has different dialog for Lightforged Draenei too.