It depends on the person I think. I've always felt a connection with my given name (Skyler), and knew more girls than guys with it, so I didn't really feel a need to change it. Sometimes people want to put as much distance between them and their past self as possible, but I know plenty people who just take the opposite gendered version of their name too.

Personally I just don't care about my name and because it's unisex I don't really need to care about the gender and how others might perceive it, and that really answers my needs.