I had a discussion with a much taller colleague one day about this (then again, all of my work colleagues are much taller LOL).
I wear what some people may think are short skirts, but they're longer on me than they would've been on my colleagues.
If I'm wearing a tailored skirt, it may be shorter than a skirt with flare. I don't flash my knickers, and the thought of hot pants in any office type environment is just inappropriate and not comparable.
I might post some pics in here later to show what I mean. At my current work we don't have a set uniform or set length of skirt or whatever, it's up to us to decide appropriate.
I sort of giggle when I think of the idea of appropriateness anyway, like the fact that I like tighter tops rather than looser ones, as I treat people in a clinic and am bending over (whilst seated, so don't worry about the skirt length), so I think it's more appropriate to have a top which may outline my chest than to have patients cop an eyeful down my neckline.
In other work places, looser tops may be more appropriate.
It's more about the overall look, not individual pieces in my work place