The confirmation of me not wanting any kids came in three stages of realization, first is the pain of giving birth, even if I don't exactly know how babies are born, I know my body. How does something of a substantial size get out of my body via such a small hole? So your body has to break/tear somewhere and you don't have to tell me that it hurts. At that time it was before I was 20, and I still thought well every woman gives birth, when it comes it comes. When I got older I started to recognize that I have to raise them, that means sharing the money that I could have used on myself. I'll have to be honest, I probably will have to love the kids more than I love myself and I really doubt I would. Then when friends around me started to have kids I saw them change. Some are happy, some aren't, and their lives revolve around their kids. So in short, the pain, the money, and the time, I don't like kids enough to sacrifice all those to have kids. Kudos to those who do though, because of them we as a civilization can continue on.