Here's a scenario to consider:
A 19 year old with only a high school degree marries the "man of her dreams." They agree that she will stay at home with their children and he will work. They have two children. Nine years later he asks for a divorce. He asks her and his 2yr old and 6 yr old to leave the home. He moves his girl friend in. The young mother has no resources, no job skills, no money--her name isn't even on the checking account. Furthermore, hubby hasn't even paid off the bills for the first child let alone the second one. She is now with her parents and going to school to become a nurse. Her parents and other relatives are helping her rebuild her life. Soon-to-be ex- hubby finally paid child support after several legal threats. Let's make sure we understand there are some real jerks out there and some innocent women and children who are at risk.
Probably a very realistic scenario. I was born into a situation similar to this. My mother couldn't fall back on her parents and as a result we were raised in foster homes and group homes. This is why I strongly believe that men should pay child support if they father a child. Sure there are women who lie to get pregnant, but there are people out there who lie about all kinds of things. We learn to protect ourselves. Once a child is conceived, a man should be responsible for paying reasonable child support.