So, Ive been trying to find a plate leg/chest which gives the look of a "skirt" or "dress". The only one I know is paladin tier2 (which is obv paladin only). Other than that, there are lots of mail ones for shamans, but ive had no luck with plate.
Ladies may wear petticoats or kirtles but gentlemen are expected to wear trews or kilts. Whether one wears a robe over them is one's own affair, as is what lies beneath, but one decidedly does not wear a skirt.