Back in the day when I used to look like a rocker, people asked me "are you a musician?" all the time. Now that I look like a typical office dweeb, nobody ever asks, and are surprised (and somewhat skeptical) if I tell them I'm a musician.
Have to admit, it always sort of confounded me how fashion is inextricably tied to music in a lot of people's minds. Especially in the rock world. To the point where people I've known for years think I "gave it up" because I'm not wearing some sort of rock garb, don't have a rock haircut, and don't have tattoos.