Consider "randomness" when u go out dressed alone! If u go out dressed to uncontrolled venues, consider what COULD happen!
Going shopping at Macy's during the day? Or, to lunch at McD's in the city? What's the worst that can happen? You're not likely to have issues other than a fisheye or hear a chuckle at those places. (Be careful about which restroom u use at McD's!)
Heading out for dinner in the country? A club, bar, or tavern at nite? Consider what COULD happen. The type of people who mite be there! Then, walking back to your car late at nite.
Personally, I've been out late dressed alone. But, only at Disneyland, a dance at a big hotel, and often out WITH OTHER GIRLS! Disneyland and the dance were controlled enviornments. No worries about being me being accosted by unsavory characters as I was in Vegas late at nite! And, I feel safe when I'm with other girls.
If you're the type that welcomes danger and the unexpected, then go ahead. For me, I'm NOT interested in going out and having unpleasant or dangerous encounters. I dress to have fun, NOT to get stressed out and nervous about what mite happen next!
Think of the possibility of yourself being in the wrong place at the wrong time BEFORE u go out alone!