To further try new things! Such beautiful ladies and their choice of dress is a bright light in this otherwise cruel place! It's not something we've seen anything of so far. Clearly it must be acknowledged!
And it's not as though it has anything to do with courtships, right? They're merely expressing themselves through fashion! Even to me it's a fair lot different than the usual back home. You should at the least try once, even a simple "hello"! They are plenty of nice ones who aren't forward at all!