well, the kids I *have* may be the most interesting thing in my life.
But my potential kids aren't.
I don't mind people talking about the *actual* kids--after all, that's a real, concrete thing, and it's one of the most absorbing things in my life. My kids occupy a great deal of my mind. I can talk about them, or about parenting, in many different aspects, all of which are vastly interesting to me, and some of which I can make interesting to other people even! (that's a skill, let me tell you!)
But kids I don't even have yet? Gimme a break!
*That* is the topic of conversation that makes me feel as though I, personally, am not worth anything except as a broodmare, that my value is only in my potential to reproduce.