The alternative to the whole 'gender' deal (with eyes, hair, weight, height help the LEO figure out if that's you, is - Biometric. Would you really like that better? DNA? Fingerprints? DNA Fingerprints... I mean it's coming, not much we can do about it. So that pesky gender might go away - on the other hand, lots of people are pretty attached to it. And such things - like a DL - have uses beyond the government.