Safety's are for people who should not be handling firearms in the first place. This is my opinion only.
Mike
Well I'm not sure I agree with that opinion, but everyone is entitled to their own opinion. I do understand his point, I just don't agree with it.
I'm not sure what the internal safeties are on the R9. I should know them, since I do carry it.
You could always carry the gun not chambered. You would then need to draw and rack at the same time. I believe that is the way it is done in Israel where they cannot carry with a chambered round.
Clearly for defense, this is not ideal. But everyone is different and everyone has a different comfort level with firearms. Just another option.