It always seemed unnecessary to me. Obiwan says the Jedi mind tricks work better on the weak-minded, suggesting the force is something inherent to the strong-minded and willed. It's almost like a side-effect of being a strong person (not strong physically, but strong in character). Like charisma given form. And that works perfectly with the idea of light and dark side because if someone is strong-willed and kind then naturally the side-effect will enhance them that way. But if someone is strong-willed and cruel, then when that in them is enhanced then they'll go the other direction.BrotherRool said:-snip-
And that also means your life experiences and trials are taken into account, as well. If there's one theme that is threaded throughout Star Wars, it's the idea of growing and making your own choices as to how you deal with life's problems. Taking the idea of the force which blends with that theme so well and turning it into something so impersonal as genetics completely undermines that theme. A good story isn't just about how much stuff "makes sense." And if you are looking for stuff that completely makes sense then sci-fi may not be the best genre to be examining. It's about fully exploring its themes and using all of the tools at its disposal to realize those themes in as many ways as possible. The last thing you want to do is throw in something that totally sabotages the very essence of your story.