I think others have said this before, but I'll put it down again just incase.

It would be really nice if the mom's and dad's could trade off between the baby. The mom could go back and train for a bit, then the dad, and so on. Or, even better. Once you have a Master Parent, build a nursery so that both parents could work while the kid is under supervision (a new way for villagers to gain parenting skills?)

That, and maybe having more things kids can do. Like, instead of just watching the scientists, going and getting materials for them. Getting sticks for builders or playing with a baby for a parent.
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When climbing the ladder of success, always remember. You can help as many people as you want- but in the end they'll get up there first and drop wet, sticky things on your head.