I don't have kids because it wasn't in the cards for us. We gave it the old college try but life turned out differently. Now that I'm highly unlikely to actually concieve at this point in my life, I don't think that the way things turned out is so bad. I don't mind children but I'm not necessarily fascinated by them for long periods of time. And, there are times that I actually dislike being around certain children. I don't have the patience and tolerance, so maybe it's a good thing we don't have any of our own.
I much prefer cats and dogs. And travel. And freedom. And no responsibility.
More than anything, I'm relieved that it is OK to make whatever choice about having children that you want to make. That is progress in a good direction.