Guns only belong in plain sight when in use and when for sale (supervised).
I have no interest in allowing law enforcement any random rights to "inspect" a home. However, if a gun is fired and a report is made, they likely have probable cause.
I'm okay with storage laws for homes because in the case where a child may find a gun and either, kill, injure or endanger a third party, the charge (for the gun owner) would be correct. While prosecutorial discretion should be respected, I suggest that not restraining folks from leaving their unsecured weapons accessible presents the same danger as not securing their swimming pools. Indeed, having a weapon easily accessible could be considered an 'attractive nuisance'.
I sympathize with parents that are overcome with emotional trauma after a child has injured or killed themselves or a sibling but it seems wise to bring them to trial. Such a parent has, IMHO, demonstrated their neglect, lack of wisdom and general recklessness. An authority should have at least the justification to step in and remove that parent's continued right to keep firearms at least so long as a minor resides with them.
When my children were young they went to a friend's party. Before dropping them off my wife called to ask if they had firearms or other weapons in the home. See was told that they did. On inquiring further it seemed safe as the rifle was locked up, the ammo was stored in a locked box and bolt opened and barrel locked with a cable lock.
Maybe your children are wise/mature enough, maybe what you're doing works for your family. Everyone should ask themselves, "Does what you're doing work for any young guests?"