In short, you don't have to be interested in babies (or cars, new jobs, sports teams, health issues, vacations, favorite coffees),
See, you can just say stuff like "I'm not into cars (since I don't have one, that's easy for them to swallow) or "I don't really follow sports" or similar things. And people generally don't feel free to drag them out to rub in your face, like they do with babies. And if you express a lack of interest in most of those topics, people don't look at you like Pol Pot or something. I mean, I don't expect people who tell me they don't like sports to change their tune if I whip out a NY Giants or Dodgers yearbook, or go into detail about Kirk Gibson's home run or Eli Manning to David Tyree.
and no one honestly expects you to be. You do, however, have to feign enough enthusiasm to make people feel good about themselves if you want to cultivate relationships. Blame society or human nature for that, I guess, but not babies. They're just another "thing."
I'm not blaming babies, I just don't like them in the sense of not actively liking them. Also, they hate me, and at a certain point between "infant" and "talking", they either cry when they see or hear me, or bury their faces in other people's legs rather than make eye contact with me. I consider the mortification of the parents that inevitably ensues to be my justice for their earlier impositions and annoyances, but I don't even blame the kids for treating me like crap. Dogs hate me too.