My decision to not have children has nothing to do with religion. I see kids in restaurants, theaters, stores, etc having meltdowns and I want no part of that. I have a hard time relating to children. I can't seem to communicate well with them.
I am currently aboard an Amtrak train. There is a young kid fussing and making all sorts of loud shrieks and noise. It's pretty much the audible equivalent of having a frozen dishrag drug through my urethra. I understand that it's a baby and it can't help it, but that doesn't make it any easier on my ears.
Until recently, my wife has agreed with me on the not having children decision, however, her sister had a baby girl 2 months ago and I can sense that this has caused a change in her thinking. My niece is a cute little thing, but at the end of the day, I'm glad that I'm not the one who has to stay up all night trying to placate a crying infant. It seems that once you have a child, your life as you know it just shuts down. No more impromtu fly fishing trips on the weekends or for a couple of hours after work. No more jumping up at a moment's notice to go grab some happy hour food and a beer with your wife at the local watering hole. Sure, it may sound selfish, but these are things that we enjoy doing together.
Another problem is that kids get older and become teenagers. It has been my observation that MOST teenagers are disresepctful, crazed little punk-asses. I don't really like the idea of having some snotty psychopath living in my house either.
I'm sure if I did have a child, I would love and cherish them and they would get my full attention and care. i would just like to avoid the negative stuff that comes along with it.