I don't want to derail this, BUT they do make special locks and safes to keep at/under the bedside as well for quick access should need be if someone has a set to step foot in the house to commit a crime and you need to step up in defense. Not saying it's geared just for the kids safety, but that's something nice to have knowing your firearm is within arms reach and safe. You'd be surprised at the locks and safes that are being made today.
Of course, proper handling and operating a firearm should be a given as well in any situation. I'm big on the safety of firearms. And one day my children will be raised around them and will understand their not toys and need to be handled with care and respect. So I'm agreeing with
@jkittle99 on that one.