> Remember the days of glass-fronted gun cabinets? <
Yep. That was back when you could leave your car unlocked when it was in your own driveway. And we all watched ‘Leave It To Beaver’ to see what trouble the Beav got into that week. (As best as I could remember, he never shot at any deputies.)
Anyway, a friend had one of those glass-fronted gun cabinets. He turned it into a book cabinet.
In CA you have to store in a state approved safe.
And if an underage gets your gun and causes problems, you can be liable.