I'm a female, yes. What does that have to do with me playing football for fifteen years? I started as a second-grader playing with the fifth and sixth-grade boys at recess and after school, every single day (rain, sun, snow, you name it). Obviously, I'm significantly smaller (in muscle mass, not necessarily height) than the guys, but I'm agile and very good at playing my position. Tackling was interesting at first, but I quickly learned that diving for their legs is quite affective. Yeah, I have had a few severe injuries from playing, but most serious players have.
The only time I pee standing up is occasionally in the shower. If there's no toilet, the squat is key.