1. Birth.
2. Responsibility.
3. Diapers.
4. 3am wakeups.
5. Hard on marriages.
6. Advice.
7. Changed relationships.
8. Free time.
9. Worry.
10. Money.
11. Laundry.
12. Tantrums.
13. Rebellion.
14. Dissonance.
15. Pain.
16. 6 billion.
17. Failed expectations.
18. Lost freedom.
19. Hard work. 
20. The unthinkable.

Via playagaingames