I do see some features aimed towards younger simmers, but mostly they can be used in various ways. I play the game in my way, and I don't need the stuff I don't fancy, but there is still lots of features that I DO fancy. And, I always added a great deal of imagination anyway, so I can fill in the gaps quite easily. I still think TS4 is a good game, and it felt more childish with just the base game, I think.
There's nothing stopping you from putting a "secret child" in the game, or make up those story lines. I would not have used such features, because I prefer my own versions of those ;) I have lots of "secrets" in my game, which is rather silly as I am the only one who will ever know, lol.
