Seeing as Daedra aren't born, and thus don't reproduce, their genders are probably superficial only.

I can do it by pushing the "~" key. CHIM?

Why would cars exist or be common when there are airplanes?

VTOL isn't common.

More expensive, and mostly for long distance travel. Those two questions don't even come close to being alike.

Then I'll make an easier one for you. Why are there shortswords in a world with longswords? I have an easier one still if that gives you trouble.

i would think that a Telvanni mage would do it? they seem to be into surgeries...(Vampiric dream)

Surgery would still be necessary when you needed to get something out of somebody.

As Magicka in TES lore is fairly diverse and broad i'm sure that changing your gender would be possible. my thoughts are that it would be costly and dangerous though. i think that an artifact with that as an effect would be fairly interesting in Fan Fiction. Hell, Fable II did it.
http://www.youtube.com/watch?v=H3o5CDKS-LM

lolwat you obviously have no clue what you're talking about

And to continue to break (my) fourth wall, technically gender isn't being changed, it's six. six is the biological aspect. Yes, I'm a pedantic bastard.

Yes, but if its magicka then perhaps it could change your entire being rather than just your genitalia.

Walter:Only if something went horribly wrong, enough to completely change your personality and psychological profile.

The point of a six change is to match biological six with the social and psychological gender. Having the caster's gender change along with six would put them back in the original position they were in: gender not matching biological six.

True lol, sorry i'm no buff on gender identity.