Leo is 10 years old. For most of his life he's lived as a girl, but this summer he began to speak openly about his sense that this didn't feel quite right. With research help for his parents, he's decided he is non-binary - in his case, both masculine and feminine - though for the moment he dresses as a boy and has taken a male name. This is Leo's story in his own words. I'm not a boy. I thought I was a boy, because I'm not entirely a girl. We tried that for a bit, and I thought:...