Just wondering, as I don't think DD totally gets it yet. She's just turned 2.
She often refers to little boys as 'a girl', when they are quite clearly a boy and vise versa.
For example, last week she was playing with a little boy who was about 7 at a playground and she kept calling him a girl (as in "girl pushing me on swing"). I think he was a bit offended, but he didn't say anything. I just corrected her. To me he was obviously a boy!