One reason is because of all the mods that fans have created and released over the years.
In the console, you can type help 'Archmage's Robes' to get the item ID of the Archmage's Robes (or any other items you may want to equip to people later). 00 Alpha-15 (Mega) for Skyrim SE/Skyrim VR/Enderal SE Microsoft Visual C++ Redistributable for Visual Studio 2015, 20 For dynamic LOD: SKSE, SKSE64, SKSEVR and PapyrusUtil, PapyrusUtil SE, PapyrusUtil VR or Mage Robes (00 06B46B) 1: 5: Monk Robes (00 0BACF3) 1: 5: Monk Robes DG (xx 01570c) Worn by the prelates in the Forgotten Vale. An Armor Set is defined as a complete set of armor that includes one matching armor piece for the head, chest, hands and feet. If you're on Xbox 360 or PS3, you're probably screwed, much like most other Skyrim problems. DR Unenchanted pieces of armor will begin to appear throughout Skyrim at level 36 and Archmage's Robes. It is the best heavy armor available in Skyrim.
