First off I don't even notice the gender of people's characters. The differences are so trivial. Second there is a standing myth of a smaller hit box due to a smaller frame. Even if this is true the difference is small. Thirdly I myself played a male character on destiny, but typically with MMO games it's not first person. If I'm going to be staring at a characters ass for hours, then I'd rather that ass be a female. Even if it's just cartoon. Edit: also the gear does look better on a warlock female vs a male.