I am "anti- gun". You portray us as uninformed on guns . I got my first " gun" a CO2 air rifle when I was ten. When I met Patricia - who was then  coaching Olympic free rifle and firearm safety- we went on many dates at the gun range. A decade and more later we taught our kids how to handle firearms. 
Neither Pat nor I have fired a weapon in a quarter century. When we last did she would consistently score perfect scores at the range and I was pretty good with handguns. We had gotten rid of the handguns even before that. The likely use of a handgun in the home will be suicide, accident and assault - 22 times more likely than defense.
 I suggest we should require insurance of buyer and seller to fully cover damages of  any tort committed with the gun. It should be paid for at time of sale. If someone wants a single shot 22 it will be cheaper than if someone wants a semi auto. If someone has been well trained and can demonstrate that in their home it is secured, insurance will be cheaper.