I have three kids, two boys and one girl. All have very different personalities and character traits. We didn't want to project any gender stereotypes onto any of them, so we had bed-rooms in "gender-neutral" colors, bought our daughter cars and trains, as well as dolls and stuffies. At age 3, she decided she wanted everything in pink, she ditched the trains and cars for dolls and horses. One son loves cars, robots, plays rough and is such a boy, the other son loves science, doesn't like to be dirty and rather reads a book than playing in the mud. So, they turned into the personalities nature gave them, they picked their traits. 

BTW; As an addition to matrial arts, I took ballet lessons as a teenager (on my own accord though), and guess what - I was the only lad among a bunch of teenage girls - heaven!