Since all the threads I have found concerning this are somewhat older, or at least no replies lately, I wanted to add my voice to the request for this.
The ability to craft robe tops was added so those who didn't want to wear a full robe wouldn't be forced to. Conversely, I would very much like to see the ability to craft robe bottoms added. Anyone else interested in this would see the merits from a fashion and RP perspective; battlemages being the major reason, but overall robe looks being the other. By letting us mix and match light, heavy and medium tops with all the robe bottoms in the game, it would increase the possibilities for player fashion immensely.
Please note I chose to specifically NOT use the word "skirts" as there are actually a number of knee length skirt options in several armor weight categories. I am not referring to those. I am referring to the bottom half of light robe meshes, generally floor length, though there are several exceptions.
I would humbly ask any commenters refrain from posting about "skirts" as that is not what I am asking for. I am simply asking that ZoS finish what they started by making robe tops craftable on their own.