There was already a post about it.
Why would it? First of all, Charisma has little to do with ones apperance - it is not beauty stat (which if devs attempted to rate faces on 0-18 beauty scale would be most likely problematic in itself).
No other stat affects apperance - strength doesn't affect muscle density, dexterity deosn't affect... whatever it would affect.
While it might be interesting to see an RPG where stats would inform the look, I am sure most people would prefer to be able to specify both how their character looks and his stats seperately. If you feel certain faces aren't appropriate to certain stat - it is in your power to not use it.
Obviously the solution is then to give us a muscle slider which has a restricted range of possibilities based on your strength
and a thicc/stockiness slider with a restricted range based on your Con!
Oh and the option to wear glasses, but only for characters with 14+ Int!!!!
