Kilts can be pleated only in the back, not in front. Skirts and dresses are able to be pleated throughout or even not pleated at all.
Kilts are made to "rap around" and fastened by a buckle on a belt or an actual belt. The skirts and dresses are able to be made any way you like.
Kilts can be worn only up all the way to knees. Skirts and dresses are in any length.
Kilts are the only thing which usually look great with the beige sporran. Dresses and skirts are not as good.
Kilts are made of Gaelic origin. Dresses can be found from anyplace and from everywhere.
Kilts are typically worn by males. The skirts as well as dresses are worn to ladies.