Guns have to be just in the hands of mentally stable people, everyone mentaly stable must have the right to have a gun, that means that we need replace the guns paper permit to a psychiatric exam to evaluate the future gun owner, with this solution we wont be a dystopian society!
The problem here is you'd have to check every gun owner each year because you can in fact develop mental illness later in your life, after passing your gun tests and owning it for several years.
Personally I love guns and if I had to choose between two extremes of nobody owning a gun and everybody owning a gun, I'd choose the latter, but I agree that a gun is a double edged sword. Having it at home gives you a sense of security and allows you to defend yourself, but it's a dangerous tool that can cause accidents. You leave it in the open and your child shoots someone, or you get scared of something and fire, thinking there's an intruder, but it could be a drunk neighbor who came back from a party and entered the wrong house.
You can't take back time once you fire at someone.