These are not baseless stereotypes. You may pick a girl and ask her, Who she thinks is a "solid male" a nerd, a artsy, or Football player?
We realize who we are, and also realize that the world is varied... but we don't want to described as who we are not. we don't want to be stereotyped again, we already have enough of stereo types.
If women can act rough, powerful, arrogant, dominant and not feel masculine and therefore not crossing gender lines and therefore not transgender.... then similarly, men can feel calm, submissive, patient and not feel feminine and therefore not crossing gender lines and therefore not transgender....
Women probably feel like that because of the position, money power.. and we because of wearing women's outfits.
If position/money power does not change a women's personality so also wearing women's clothes may not change a man's personality.
"Gender-lines" is an interesting word.. Women fought hard to cross it, because that's where the jobs, respect, stability and so much more lies.. But its so hard to understand why men would want to cross gender lines.. isn't it?