Not sure where to put this, so I'll put it here.
Let's say that I wanna modify my copy of the game. I want to reduce the minimum of one stat in the game. How would I go about doing it?
I assume you are asking about how you would go about reducing the minimum age from 18.
For legal reasons the age is hard coded to 18.
See this thread
Unrestricted Crazy's mod [No age limits] for more details on this subject.
If you live in a region where the age of majority is not 18, it is your right to change it to suit the laws there.
This game is open source meaning anyone can get the source code and modify it to suit their needs.
To change it you must download the source code, change it and compile the game yourself.
For .06.02.05 I have added a Legal Note // `J` Legal Note: 18 is the Legal Age of Majority for the USA where I live.
Do not change the age to less than 18 if it is not legal where you live.
I use ms Visual studio express 2013 to edit and compile the game.