There's no reason artists can't do both and be remembered for both.
I used to say I would NEVER draw adult stuff. Once I got started drawing them, just to see if I could, I actually enjoyed creating them. Whether others like it or not, I still have the pg artwork. I also have non-anthro as well as anthro but since I am hosting here, it has to be 80% anthro. I mainly do the non-anthro for my family.