I'm not against CCW but I think about the extremely quick decisions that have to be made. Possible bystanders getting hurt, someone behind walls, that sort of thing. It could be a traumatic event even when things go perfect. And if people later questioned whether you caused more deaths it would suck.
To those with CCW here, do you know of others who you think probably should not have one? For example they aren't competent enough or they have emotional instability.