The place I work now has a range of dress codes. Account executives typically go biz casual and all the girls go bare legged with skirts and dresses (I guess I should call them women but they are close to my age so it seems weird...I still feel like a girl!). The designers and creative staff are mostly casual and going bare legged is not a problem. On casual Fridays, one of the account execs wore this oversized batwing t with bra straps sticking out. We really don't have high standards in terms of dress (I should say the outfit itself was cute, but probably not appropriate for most professional settings).
At the museum, I went bare legged all the time. Didn't even think twice about it.
I am wondering if it's a combination of WHERE I work and my line of work. I honestly never even realized hose is considered an issue of modesty and professionalism until it was mentioned on YLF. Maybe in NY we get away with more? I can't speak for what goes on at law firms and Wall Street, but it doesn't seem like I see too many be-hosed legs in summer or spring.