Simple, if you don't want to or are skeptical about carrying with you're glock chambered. Don't carry a gun. What would be the point? U would have to draw rack the slide then fire. Against drawing and firing.
If you got into a gun fight with a guy that had his gun locked and ready to rock(god forbid that ever happen to any of us) and you had a cold chamber. Who do u think would win?
"If You don't stand for somthing you will fall for anything"