blurgle - in theory it is possible to hack the sim file and do most anything... in theory.
The game has some set age values that control the face template, the clothing, the hair, the animations, etc. Eric was able to craft an "idependent teen" life stage - but that is one of his trade secrets.
There is a missing age integer:
0x00000001 <-- toddler
0x00000002 <-- child
0x00000004 <-- teen
0x00000008 <-- adult
0x00000010 <-- elder
0x00000020 <-- 
0x00000040 <-- young adult
and I see other items that lead me to believe that there are game recognized values at:
0x00000100
0x00000200
0x00000400
0x00000800
0x00001000
0x00004000
0x00010000
0x00020000
0x00040000
0x00080000
0x00100000
0x00400000
but what if any significance they have is something I haven't determined. they may have to do with being a zombie, vampire, etc.
I don't know that you can make a child move slow, and the idea of a toddler pound the dust out of the carpets at mach 9 through the house reminds me of a commercial. I know this isn't much, but it's all I have to offer on the age manipulation. Maybe someone more knowledgable about hacks will drift through and give more.
