Somethings have to be automatic, otherwise it\'s not asmuch Roleplaying as it is Storymaking.
It would be nice to have the option to do this, such as in character creation you can have a checkoff list
[] Parents Still Alive and \"kicking\"

[] Possibility of a long lost sibling
[] Fertile

And I am sure a few others.
Would help bring newbies into the game and such.
You could have a baby and then, the next time a new players comes and checks off that they want in a family the baby will become a child....
Kixie is correct (as always

) it has been discussed before, but never really decided on.