I started at 27 so I don't really believe that there is much to the "he started too late" myths. I'm also left handed but am learning on standard right handed guitars but I find it helps with my fretwork.

Although I have to admit that I have a feeling I'm not going to have people say quotes like this about me any time soon. "Hey, remember that Andy Arsenault didn't start until he was 27 and that guy shreds!"