There is no ideal situation when getting into a deadly force scenario.
I don't hang around folks who don't know me well enough to know that I carry, so that isn't an issue with me, for others it might be. That is their call.
However if folks don't have the mindset to carry on a daily basis, at least something for defensive purposes, then they probably aren't going to have the mindset to engage the threat, or the fight mechanism. IE, they will be using the flight mechanism that shows up when fear sets in. There is a possibility that the freeze mechanism would come out with some, but if your doing your part to move off the x when engaging, your hopefully going to get them out of the fight.