Considering male and female is a spectrum and biochemically, we
  have the same stuff inside, just of different levels at
  different times of the day. If I drink coffee or cocoa, I get
  more copper which increases estrogen making me slightly more
  female. If I eat pumpkin seeds which have zinc, I become
  slightly more male because zinc leads to testosterone.

  Outside of the child-bearing capacity which comes from having
  formed those particularly shaped organs, ovum? or testicular
  sacs? Does your thingie go in or does it go out? ... not a heck
  of a lot of difference.

  Socially? Usually a big difference. Training begins at babies.
  Gets worst around 8 yrs old and it's downhill from there.