I may be oldfasioned but I really like that the moms don't work before the kids are two. In my opion, if you don't wanna take care of a baby for at least two years you just shouldn't have them. But as I said that's just my opion, they can work long enough afther the child has grown up.
antonia, I agree with you when it comes to real life (how can you concentrate on anything else really? :)). But when it comes to the game, it really becomes frustrating to wait 4 hours; I can't even spend that much time daily on the game, and it's a little boring when the mother is always carrying a baby when I'm trying to play. It's not the game years I'm objecting, but the real hours. It would be nicer for me if I could speed up the game when the mother is carrying a baby, and slow down again (maybe super-slow mode even) as soon as I have a full family.