I have a "safe" in a closet, a large steel box that holds rifles and pistols, has a simple key lock, and doesn't claim to be fireproof. This is for storage. Firearms in there are unloaded.
Then I have a quick-open pistol lockbox on my nightstand. I keep two pistols in there, holstered and loaded, for home defense and CCW.
Then I have a lockbox under the seat of my car, for when I need to disarm before entering a "gun free zone".
Yes, I think I need all of these locked containers for my firearms. I have children, now teenagers, in my household. For them, their friends who visit, and any uninvited guests, this will at least slow them down significantly if they are attempting to get their hands on my firearms. I have taught my kids gun safety and have been carrying them to the range and teaching them how to shoot pistols and rifles. For now, though, they have no access to them, other than through me.