Lumidingo - Again, sorry I respectfully disagree, even with studies showing I am 'wrong'. I will attempt to explain why but it won't come across right no doubt
As babies, we are born either male or female. Biologically. Womens bodies have the ability to carry children, male bodies have the ability to produce sperm to go towards creating said children.
Babies do not think as we do. They are just babies. The want attention, food and love. Thats it.
Over the course of their lives, they are moulded to believe gender stereotypes through various sources. From what they see around them, how they are treat and what they are taught along with other factors.
'Gender' and gender identity..are simply societys views ingrained into us. It goes back to the beginning of the human race and as such it will be a hell of a long time before any of it changes as its just accepted as the norm.
Do you believe, a baby born and kept in a completely controlled gender neutral environment, would have a gender identity? Or are we simply made into who we are by other people and their views...is what it comes down to really.
IMO...a baby wouldn't even know what 'girl'/'boy' was so they couldn't possibly have a gender identity if it wasn't taught.
Writing that down had made this all a bit mindfucky to me now actually :S