Why is jak a mute

your answer is: he never knows what to say. i mean what kind of guy would be a mute for no reason. also another 1 could be that NAUTY-DOG coud'NT find anybody to do the voice of jak.
NOTE: this is a trademark answers so if you whant to make this answer better, you have to be my freind or your name starts with N. Thankyou for your co-operation.
(forget the last bit)