Good idea. I just checked mine, in California, and it also says "Sex: M".

It also unjustly classifies me as having "BRN" hair. I don't have brown hair, I have dark brown hair, and a particular shade of brown hair that isn't captured by the government's arbitrarily chosen tetradecimal categorization scheme. Hair color is a spectrum, and they should recognize that by ending the practice of falsely categorizing people into inaccurate groups.

Similarly, they commit the same act of violence against me by classifying my eyes as "BRN", when I am sure my eyes' unique hue is not precisely #A52A2A.

[1] http://www.vsp.state.va.us/afis/livescan/files/VAEye&HairCol... (Yes, this is Virginia, I couldn't find one for California.)