07 CVO
The Corps doesn't have a policy requiring Marines to get permission to get married. Plus, like you, I am a HUGE supporter of treating junior enlisted like men, always have, always will be. And I never doubt that they are capable of making good decisions. That's the reason that I never had problems sending 23-yr old (and younger) Sgts and Cpls as patrol leaders...responsible for the lives of at least 20 other Marines...depending on them to interact with the local populace in an honorable manner. They rarely suprised me since I always expected the best from them. My Plt Sgt and I counseled the Marines because they wanted to get married right before we were getting ready to deploy to Iraq...and we wanted to ensure that they were getting married for the right reasons (they weren't, as they all just met these girls not more than two or three months prior to deciding to get hitched, and like I metioned, all had this Shakespearean-tragedy idea that it was romantic to get married right before war).
The "standard of living" between the USAF and USMC vastly differ, but my Battalion at least never had issues with the barracks. We actually had enough rooms to give Sgts their own rooms, 2 Cpls to a room, and 3 LCpls/Pfcs to a room (this situation varied between types of units. I can guarantee the grunts had a different set up). If I did run across a Marine getting married to simply get a place to live with some privacy, I would have counseled him against it -- but in the end I can't stop him, just guide him as best as I can since I am responsible for their welfare - and I take that responsiblity very seriously. It's not scrutiny, it's being a good leader and taking care of Marines. You'd be hard-pressed to find a senior enlisted Marine leader who doesn't feel the same.