Firstly, that outfit is awesome! I'm planning on sewing some sweet (not-so-sweet) stuff for my baby girl to-be (due in January).
But probably you parents would be the ones buying most of the clothes, so there's nothing that says that she would have to wear "girl clothes"
not necessarily...in my case, as soon as my husband's side of the family heard that we were having a baby girl, we were BOMBARDED with pink. And this was mostly coming from 40-50 year old women, so it was like...the collared pink outfits that look like they're from the nineties. oh man. I mean, I'm really grateful for all the generosity...but couldn't they have given me the chance to pick out clothing for my own child? couldn't they have bought me a baby bath tub and boppy pillow instead? haha, oh well. people love buying baby clothing.