The problem with refusing to wear pant thing is that you have to realize that pants are actually not a women's thing. what if your mother wears them all the time, works, is the one driving the car (not your dad), is the assertive one, etc. What if your parents and everyone around you defy female stereotypes and you watch 2-3 hours of very selective TV a week (most of those being sesame street when I was young), how on earth could being put in pants ever traumatize you then.
My mother always bought me very nice clothes, good material, with little vests and much colors (it was the 70's); no one else dressed like that. The fashion for men's hair was long and I had long hair (shoulder length) from age 2 to age 8; Was consistently taken for a girl during the whole period. If I can get my scanner to work and find a decent one, I may post it. I was the typical tomboy, if your a girl and are a tomboy, why would you feel bad about wearing pants or doing more active activities, with one of my friend, a girl too, 1 used to build snow forts in the winter and we'd stage epic battles. She went into fashion design later, not a very tomboy activity, but she's got such spunk!
I started to notice gender when I first saw the Sound of music on TV, I was about 7 (1974) and somehow (we got our first black and white TV in 1970!), I really identitifed with Liesl and the rest of the girls, especially the 16 going on seventeen song.
The same year, my sister was born, and that jolted me, told me of the existence of gender and different paths!!
Still, I was a tomboy, and even though I got steadily bullied from 7 onward, I wasn't sure why, even though epiteth relating to being gay abounded in my direction (since this was preburty, I suppose it was because I was always with the girls in class and after class. Again, I didn't really feel different from the girls even if I didn't wear skirts, many of them didn't wear skirts at my school and had active activities. I was first in gymnastics, beeting all the girls, for several years (I was always good in all sports, beating males, females, aliens :-).
It was only at puberty when I was totally left behind by my friends who left tomboyhood, leaving me alone and dawning on all the implications and my fate!!