Actually to break even for poulation you need to have 3. One for you, one for the other parent, and one that statistically won't reproduce (since 1 in 3 either die before reaching that age, are infertile, or simply don't have any children).
Zero! Kids!? Nooooo way! I don't want any AT ALL, E-V-A!!!
1: I think one would be nice. I'd give him/her all my love and undivided attention!
2 would be sweet. Then they'd have a brother or sister to play with too.
3 for me! I love kids!
4 is great. I really love kids
5 because I really, REALLY love kids!
6+ but I'll have to work every hour under the Sun to feed 'em all.
10+ I'm just gonna pop 'em out, one after the other, for the rest o' my life.
Actually to break even for poulation you need to have 3. One for you, one for the other parent, and one that statistically won't reproduce (since 1 in 3 either die before reaching that age, are infertile, or simply don't have any children).