I think your idea of a cool outfit may differ from everybody elses. I don't see how wearing dresses all the time makes them have class or be clean. The gowns look like something you would wear before getting a rectal exam in a hospital.
Everyone is own taste... Personnally I like the dress, it's color and style... And you know it's a traditional modern dress... If you like to wear stretch jeans and little shirt to show your body... Free to you I don't care.
I still find this idea very nice and positive... Suits are always to tight... Anyway... Respect other cultures.