|J Crew image|
You don't have to be an urban planner to have a pretty good idea that what might be found on the surface on a sidewalk could be... icky. And while the dress above is quite lovely in it's "street sweeper" way, given that the model is almost certainly taller than you, you should definitely consider having your maxi dress hemmed to a less overwhelming length before wearing.
Vivienne always freaks out a little bit thinking about the microscopic critters being carried into their hotel. Of course, shoes also carry in the same sorts of fungus, bacteria, and germs, but it just seems WORSE when it's on your skirt.... And the thought that your new dress is going to start fraying the first day you wear it is just sad; fraying clothes are not attractive, unless they're jeans.