User blog comment:Gundam Legilis/Pop Culture dancing and RWBY/@comment-11188061-20150213084555/@comment-25405817-20150213143251

@Zolnir: They wouldn't necesarily have to use 100% accurate costumes, precisely for the reason that their outfits aren't designed for dancing (combat skirts, remember).

If somebody decided to do a RWBY adution, they'd make dance setups inspired by the character's main wardrobe. I'm no "clothing fanatic", but that's something I'd be interested to see.