1. Kids cost money.
2. They're gross and messy.
3. Childbearing hurts.
4. Time consuming.
5. You can never travel with kids.
6. I don't wish to continue the cycle of abuse.
7. I have a lot of genetic issues I don't wish to pass on (diabetes, allergies, weight problems, bleh).
8. I don't like kids.
9. They're noisy.
10. I don't know how to raise a kid without being like my mother.
11. They could hate me.
12. The world is overpopulated enough as it is.
13. They're ugly.
14. I am emotionally unstable.
15. I don't want kids.
16. The process of pregnancy is terrible.
17. They will never be what you expect them to be.
18. I would rather have money and travel the world with my mate.
19. Kids mean no quiet time. For sex, in particular.
20. Kids break things.
21. I'd rather have an extra bedroom in a house for other things.
22. Pets are better. And cuter.