Also, the wand is the original phallic symbol in ancient legend and mythology, not the staff. The earliest known reference to a witch/sorceress using a wand to cast magical effects is Circe in The Odyssey, at least from my academic studies on the subject. The staff came in centuries later and is not so clearly a phallic symbol of power like the wand is, nor is it so clearly taken by females and used for their own devices to channel their own inherent magical abilities as the wand.
That's why so many of us who love magical girls want wands in TES, but Bethesda continues to ignore us.

(sigh) No choices... bleh...