Good grief, people! These are five-year-olds. Nobody has any notion, nor even cares at that age about sex, sexual orientation, or gender identity.
When I was about that age, our parents took us to Frontiertown, I think in upstate New York, where they had a ride in which you were put on a stagecoach, which was chased by actors on horseback. My older brother was allowed to ride on top and fight off the bandits. My mother made me ride inside the coach, even though I was heavily armed on both hips with dual cap pistols and was prepared to fight along side my 11-year-old brother, and I sure did kick up shit. She made me sit down in the coach. While I understand as an adult that allowing a five-year-old to ride on top of a speeding coach was something that a responsible parent would not do, it was put to me by my mother that "I was a girl." Not good.
In my adult life, I have always been a heterosexual, as it was men who always attracted me, and women did not. But this is not, and should not, be political, because we understand absolutely nothing about the operation of human sexuality.
I strongly object to anyone who would force a gender identity on any child. These are culturally based anyway.
I want to play with Colin Firth. I also want to play with my brother's electric trains again. The dolls were really boring. I would love to get to play with an Air Force jet (properly trained, of course). I loved "12 O'clock High."
Forcing a gender identity on any child is just plain wrong. Let your child choose who s/he will become.