Au Ra physiology and other lore.

[Nataruma]

You got issues with gravity-defying hair, bub?

To answer your question though they do have braided styles and more tribal-esque looking coifs, but if you can go with an amazing creation that has taken at LEAST 10 cans of hairspray alone to keep aloft, well, why not?

[Isklexi]

at LEAST 10 cans of hairspray

You know a man takes his haircare seriously when he's willing to punch a new hole into the ozone layer every morning.

Well, that's also what you expect from a final fantasy.

The best part about that picture is that the girls have the most reasonable hair.

[Balipu]

As mentioned in Crisis Core "Sephiroth uses an entire bottle of both shampoo and conditioner to wash his hair. Both are provided by the Shinra Company and are scented with thirteen kinds of perfumes" Hair is a serious business for final fantasy characters.

[Sabeta]

I want to go back to the whole "Guardian" complex thing. Unmarked spoilers for Fate/Unlimited Blade Works, so if you don't want that turn away now. (I hate large blocks of black text/spoiler blocks more than I hate unmarked spoilers, deal with it!)

The man above is known throughout most of the series as "Archer", and without going into too many details he travels back in time to kill his younger self. His younger self is a would-be ally of justice, who wishes to protect anyone and everyone he meets. At some point he gains superb magical powers to help him fulfill that dream as a "Guardian Spirit". Ironically, this meant travelling to different points in time and murdering people by the dozens. Why? Because if he didn't, hundreds, thousands, and sometimes even millions of people would die.

Saving everyone wasn't an option, he had to kill people to save others, and eventually he took his own life. Instead of finding rest, he became a Heroic Spirit, and must constantly relive his life. With his "ideals" broken he joins the Holy Grail War where his younger self participated, so that he could try and eliminate himself; hoping to cause a paradox that eliminates his Spirit and sets him free.

As a military servicemember I have a very similar worldview (except that I accept this reality, rather than trying to shut it away). I may at any time be called to kill hundreds of people in order to protect the millions back home. That does not make me the good guy, nor my enemies the bad guys. It just means I have something to protect.

More on topic: I think Au'Ra are cute and perfect in every way. My biggest complaint is that horn options are locked to face options (Horns 2 with Face 1 please!)