When I'm a girl ...

Cole has started to talk openly about his future as a girl. We were talking about what they wanted to be when they grew up, and he mentioned a few possible careers and then added -- and I'll be a girl then, too! I still refer to him as him and I can't see that changing for a while. Sometimes I feel fully on board and sometimes I wonder if I will truly be able to be the support he needs. I'm looking for that manual that he came with, but I just can't seem to find it ...