Or Eredars just wear whatever they want, just like people in real life. It's very frequent that you see dudes that are fully clothed and next to them are a bunch of girls only wearing short shorts and a t-shirt that only reaches down to their ribs. and on the other side of the spectrum you don't often see women walk around topless in just shorts on a hot day, it's usually just men that do that, though it's not as common as people are making it out to be.
TL;DR Men and women being unequally covered up is not sexist, it's realistic. genders are different and there's no need to balance every-single-fucking-thing