When I said earlier that mom and pop don't raise their young, I was referring to what I saw in the Spore presentations; and once an infant was born the members of the previous generation were gone. I wasn't talking about how things actually work, only what I've seen in the game videos. Just thought I'd clarify. 
And I think that's the purpose of almost all these forum discussions. We've all seen the video, and so far, the video (and a few podcasts and screenshots) is all we've seen. Most of what we're doing here for the next few months is "wouldn't it be cool if" or "i hope they" kind of talk. Sure, we have a list of "confirmed and denied" faq answers, but even those we can't be sure won't change in the next year -- I can't imagine that, if Will says "no ringworlds" and the entire fanbase says "we want ringworlds" they won't stop and say "ok, maybe we should put ringworlds in the game."
By someone posting a "wish" on the forums, the devs get to see what are the major things they ought to add - considering live birth doesn't seem such a popular idea apart from me and a few others, chances are they'll find more popular things to work on first.
Again, I don't care what ends up in the final version, and obviously things will be different than what's been presented at the GDC and E3.
I don't think you mean you don't care - otherwise you wouldn't be here talking about it a year in advance with the rest of us. More than likely, you mean "no matter what ends up in Spore, whether they use any of our ideas or not, I have no doubt this game is going to make me pee my pants with happiness when it comes out" -- just like the rest of us.
If the developers add some kind of family dynamic, where sporians must be raised, then I still don't care what ends up in game, especially because there are/were certain species of animal that laid eggs and were not 'loner' creatures (various forms of dinosaurs, various birds, termites and other insects all have either a group or colony dynamic).
So much of Spore is going to be optional, which is why I'm such an advocate for "shove in as much as possible and let the users ignore the parts they don't want" - but they can only do so much in a year, too
I definitely think an option would be cool though, and I don't see any disadvantage to adding this feature as another way to customize a creature; I just tend to be a bit of an empiricist over here, and so unless I see a feature mentioned by an official dev, I'll view it's implementation with some skepticism. It just makes surprises better that way. 
And that's the exciting part - for all our hopes and wishes with Spore, there will no doubt be things we discover while playing that not even we thought of.
