I'd like to clarify something, since some seemed to be almost offended that I put such a feature into OOTP 5...
This is a part of the game that is somewhat "hidden"... you do not need to pay any attention if you don't care! I personally wanted this feature in there because I like the idea of managing your virtual son and see him rise through the minors and make his big league debut. And I had some fun developing and testing it!
AGAIN, this is a feature that doesn't need any attention if you do not care!
Oh, I forgot to mention that those houses and cars will not be part of it... I planned it but it makes no sense at all!