Now Toronto (http://www.nowtoronto.com/issues/2007-06-21/news_story.php)
Why do folks care if I doll up or dude out?
By MICHAEL A. GILBERT AKA MIQQI ALICIA
Of course, it all comes down to gender and the gender rules. There are none so rigid. These begin with what we wear but quickly move on to how we speak, stand, sit and relate to others. Gender rules determine what names we are given, what careers are open to us, whom we will marry, who will be a mommy and who a daddy.
The most pernicious thing is how early these rules are taught. That's why the guilt comes so early.