I used to think it was stupid for anyone to have so many kids. I thought my friends were stupid to have 5 - but now I realize the importance and significant contributions they made by having 5 Aryan kids.
If you only have 2 kids, you're only replacing yourself and your wife. 3 is the bare minimum needed to see population growth for us, but just doesn't quite cut it. 5 kids should be the ideal (can still all fit in a 7 passenger van). Unless you get 2 vans, then have 12 kids and each parent drives 6 kids in each van.