Is it OK to not like or want children of your own?

I’m a 36 year old male. My wife and I are happily married and do not want kids. We do not see ourselves having kids any time soon. All of our friends now have children and our brothers and sisters have them. We like children in very small doses but after a while we find that their cuteness wears off quickly. Some people have called us selfish but bottom line, we find kids to be a little over rated. We don’t understand the rush to have them and we don’t forsee ourselves ever having children. Are we alone? Does anyone else feel this way?