I got to consider the whole "Kids and Guns" issue rather suddenly, when my girlfriend became my fiancee, and moved in, with her two kids (11 and 7) from a previous marriage.
I had been keeping my guns out of sight and unloaded, but not particularly secure, until the kids started coming over. Once they were visiting a lot, I started locking the room that the guns were in. Once they moved
in, I know I had to tell the kids, to remove the mystery.
I showed them, spoke to them about the rules of safety, and told them they were allowed to ask me any questions they wanted, any time they wanted, as long as it was only in front of family. And I asked them to not tell anyone outside of our family about the guns.
Then I built a electromagnetically-sealed, UPS-backed up, concealed gun vault in the house.
The kids know where it is, and a couple of friends who are shooters do also, but that's it.
Anyone want a concealed gun vault built for them?
-BP