Well, I guess having kids sounds nice. Bringing a new life into the world, representing the commitment and love shared between me and special woman. Until the first day the kid comes home crying from school because he or she was beat up or pushed around by bullies. And I'll either have nothing to say to the kid, or I'll have to give them the same b.s. advice I got when it happened to me. And then I'll know the cycle is starting all over again. Also, I can't imagine attempting to teach someone how to throw a baseball or catch a football or something else athletic. I dread the day he comes from school saying "Daddy, show me how to hit a baseball, all the other kids can do it except me" and then I have those young, trusting, innocent brown eyes expecting me to make everything all right. At some point he's going to realize that I don't know what the heck I'm doing with a bat and ball either, or any other piece of sporting equipment, although he's not old enough to know what he's realizing. And then he or she avoids competitive sports, or any other competitive activity, like the plague. And discovers that avoiding things is an effective way to avoid being hurt by them. Or, it turns out that the kid has hay fever, and can't be outside between February and October without 6 pounds of snot hanging out of his nose. As you can imagine, that'll go over real well at the prom. And again, I'll have absolutely no good advice to give to the kid.
So yeah, having a kid is a nice idea in theory, but I can't imagine myself being any kind of competent father.