I know what you mean. I don't really want to look at anybody's knees or thighs no matter what their weight, shape, or size is (which, before anybody gets the wrong impression, I realize is an unrealistic expectation in my culture, so I just don't look).
You're just talking about "shorts" that end at some point or another above the knee, right?
*chuckle* What about scooter skirts? I personally think they're adorable but haven't had the time to draft one (apart from mentally) that would meet my personal standards of modesty (i.e., knee-length)