I was at one of the seminars at which Pincus recommended putting a quick-access safe in a child's room. His reasoning was in essence that if you stage a firearm in a quick-access safe in the child's room, then you don't have to choose between: (a) running to your child's room; and (b) running to your gun. It could very well be that a and b are in opposite directions from where you are when things go sideways.
I'm a lawyer, but I'm not your lawyer. If you need some honest-to-goodness legal advice, go buy some.