i agree that comfort is of the most importance, but you can get comfortable with new things, and when you start pressing more you'll realize it's easier to get your weight over your nose or tail and still feel balanced with a wider stance. idk what kind of board you have but most boards the widest possible stance on the board isnt THAT wide and you could most likely get comfortable with it pretty quickly.
and it shouldn't affect anything you decide to do, but it think people riding with a really narrow stance look goofy as hell, even if they are killin it i just think how funny their stance looks
but just do your thang and dont give a rats ass about what people like me think
SIGNITURE MOVE: Method through a dragon's firey breath, bonk his fang, then slay it with my board... while solving a rubiks cube, blindfolded, and underwater