Just looking at the PnP Star Wars RPG (the d20 version for simplicity) there are only three primary classes for Force users: Jedi Guardian, ForceAdept, and Jedi Consular. Hell, there is no such freaking thing as a Jedi Sentinel. Now on the none force side of things there are Scoundrel, Scout, Soldier, Tech Specialist, Noble, and Fringer. Also you don't need to belong to a Force Class to use the force. All you need is the Force Sensitive feat, which can only be taken at First Level which opens up Force feats and skills without being a Jedi, Sith, or some other force using class.
KotOR series is very limited which is a major drawback in my view. Should the option of being able to play a Jedi be in the game, yes, but also the option to not play a force user should be in as well.