Cons: In the event of an actual emergency, need the gun (NOW), you are wasting time trying to get to it. Pros: Children don't have ready access to them, thievery is hampered, unless they can steal the safe. Gun cabinets they can just break the glass.
Pro you are keeping it out of the hands of somebody that doesn't know how to use it that could get hurt, Pro keeping it from somebody that's nuts. Con Not being able to get to it in an emergency. Keep the gun locked and make sure you don't have it around anyone that is mentally unstable, more important DONT be in DENIAL that you are around someone is mentally unstable. THAT'S HOW PEOPLE GET KILLED!! We see it time and time again!!!! That's the problem!!