Hair...
Please don't associate short hair with being butch, Texane. I know a lot of women in all branches of the military who wear long hair. My hair has been short since before I joined the military... back when I started in health care. I just look better in short hair.
I'm for encourageing military women to wear short hair if they're gonna spend a lot of time in a field environment. You don't get a lot of water to wash with, it's hard to get it to stay up when it's dirty and it's a really problem trying to get a field protective mask [gas mask] to seal properly with long hair. That's not something you want to have spring a leak, believe me. There were a couple of stylists with my unit when we deployed to Saudia Arabia in Desert Storm and after the first SCUD assault when we wnt into our chemical gear, most of the women had their hair cut. Short.
The Air Force, as a matter of fact, is one of the most leanient branches of the service when it comes to hair regulations.
It has nothing to do with the service wanting us all to look as unattractive as possible, it has to do with the job you're doing. A lot of front line guys clip their hair short or shave their head for many of the smae reasons. My husband, when he was in the field, shaved his head. Easier on hygine and he didn't bring back critters from spending 4 weeks hunkered down in the muck somewhere.
Not a lot of women are in military jobs that require field time. Many who work in on-base assignments wear longer hair. But quite a few don't because short hair is faster and easier.
Joining the military is all about changing your total lifestyle. You have to make choices on what works for you. Many women find that they'd rather trade the time they would spend keeping their hair up doing something else.
As long as you meet guidelines, it's no problem.
As for SG-1 being a SF show.. yes, it is. But it's part of *their* desire to be as militarily accurate as possible. I applaud them for not taking a cope-out and changing things just to make it easier on them.
BTW: When I started in health care in 1970, the same rules applied to the wear of hair in a hospital environment. It had to be short our up off the collar. Things change.