I will not enter in the merit if it is or not a kilt. I would have to have a formal definition of what is a kilt by some standartization entity, like ISO, with authority to do so

They are pretty common in the heavy metal/goth outfits and (being a metal head) maybe I would use it, but only in "metal" enviroments and/or as part of a metal outfit... But I agree that it should not be very confortable.