That would reduce the game to roll-playing (which should only be a small part of the game), especially the things that xechnao mentioned, which I would adamantly oppose as being necessary or improving any game, if you really need to have rules to hate a character ingame, or need to love somebody, and other things...
You do not need rules to love someone, or hate someone in game. But rules to see how good your character is at seducing someone, or making someone so angry they lose their temper, that's a good thing to have. It's often as important to check whether or not your character can fool the guard as it is to check if your character can hit the bodyguard.