I have only just recently started to carry in my home. I never really thought about it, mostly since the wife started out terrified that the gun would massacre the family on its own. :D Now she has come around and isn't as bad about it, but since the ISIS threat warnings that have come out...
I think as long as they stay on the right side of the laws, then I would not have a problem with it. We'll see what happens the first time they get into an encounter with an armed individual though.