And some have done and do cover more that the average western woman.
Again though, I'm talking about what you most commonly see. Aside from some religious extremists, most women aren't covering more than the average western woman, nor are they revealing more, except for maybe on the beaches in some countries, but they usually will always have their genitals covered, and that is not only for modesty purposes but also for practicality purposes. You don't really want to sit on the hot sand without any panties on, you know?
I'm just pointing out that these norms are quite mutable. I don't think that the society of 100+ years ago would find the average western woman of today to be sufficiently feminine, or at least sufficiently ladylike.
Nor would they find the average western man sufficiently manly due to his lack of practical skills, burps, farts, and Truck Nutz, notwithstanding.