I know lots of self-centered people that are parents.
What I mean is that it is hard to find women that actually WANT to live a life of sacrifice, living for the family, instead of living to themselves.
I've met some women that when I ask if they want to be mother they say:
"Oh, sure!"
And then I ask:
"So, when you have your 4 months old kid, you will stay at home to take care of it if your husband is rich enough for that?"
And then most of them reply:
"Hell no, the kid can stay in the creche, or watching TV with the babysitter, I must work."
Funnily, I have a friend that insists that she will even have a kid using sperm bank, and she will take care of that kid alone, yet she hates her mother because she feels her mother did not gave attention enough to her (her mother is a divorced lawyer, and the girl was cared by the house cleaning lady that lived in the house, when she has problems she still talk to that lady instead of her mother).