God knows what would happen at work if I wore fishnets. Think would get looks.
I don;t thing a busines suit is appropriate to wear with bare legs. I work in a very conservative environment, alwasy wear patterned and/opaque tights.
Loathe the very sheer type as they ladder as soon as you look at them, however I wear them in summer (with lighter office wear/dresses) as I think bare legs look unrpofessional frankly.
Plus I am also very pale, never use fake tan and my blue legs need tights to cover them!