Approval of labor certificate does not guarantee a visa issuance. The Department of State (DOS) will issue an immigrant visa number to the foreign worker for U.S. entry. Applicants must also establish that they are admissible to the U.S. under the provisions of the Immigration and Nationality Act (INA).
I still prefer BioWare's take on Mage non-Robe armor. Xelestial (talk) 14:16, August 15, 2011 (UTC). I think Anders in Awakening had a pretty good reason why mages wear robes. From a gameplay reason, most mages don't have the strength to wear heavier armor, and Fatigue becomes a problem. But still, there's always leather armor like the Mages Collective wears.
Why do the musicians wear formal black clothes? This is a long tradition that started centuries ago. Sometimes musicians dress a little more casually, but they still try to look uniform, so that the audience can concentrate on the music. Soloists are the exception: they often dress differently, because they are the focus of attention.