I think his (somewhat mangled) point is that pretty much everyone in their early 20's doesn't want to have kids, yet most people in their 30's are at least open to the idea.
He's basically playing the odds, but like I said, mangled his comment.
A gay friend had a house warming party years ago and my wife and I turned up. We were the only straight people there out of probably 50 guests and I heard someone say "breeders" as we arrived. It took a second to get it and It didn't feel good. I felt more alien than the numerous times we have been overseas and not been able to speak the local language. And when I consider that the people there would all have had comments made against them at some point I had a slight inkling what life could have been like.
