As a general observation, I think everyone would agree Parkour is male dominated.  During my time in Australia I found the male to female ratio was even bigger.  Without the option of female only classes the large outdoor ones filled with young teenage boys can be daunting to some women.  In class the guys are nothing but encouraging and generally treat you equally, unfortunately you only know this once your actually there training.

There is a general consensus within the Parkour community that knee death will occur should you decide to take a drop from over head height without rolling.

Late one Friday evening at a party...

Stranger (picking at food on a plate): 'So what are you doing this weekend then?'

Me (sipping on a drink trying to make it last): 'I'll probably be training on Sunday - I do Parkour you see'

Stranger: 'Oh! That's the Freejumping thing where you throw yourselves off roofs isn't it?'

Me (sighing inside): 'Kind of. We normally stay at ground level to be honest and train on walls and railings'