I suggested this a couple of years ago, and it really is something that would be a tremendous improvement.

Some glamours are really, really nice, but I can't wear them because they clip horribly with my preferred hairstyle. Or, an outfit would look so much better with a different hairstyle, etc.

Every person I've mentioned this to has agreed emphatically: the ability to add a hairstyle, even if there's a cost associated, would be greatly appreciated!