Smart guns aren't necessary to make guns much safer than they currently are.
https://www.thetrace.org/2016/06/low-tech-ways-manufacturers-can-make-guns-safer/
Five Low-Tech Ways Manufacturers Can Make Guns Safer
Chambered round indicators
This feature is located on the top or side of the slide to inform the user of a semiautomatic pistol whether a round is in position to be fired.
Magazine release safeties
Magazine-disconnect features block the gun from firing when the magazine has been taken out.
Heavier trigger pulls
Guns with light pulls are more likely to fire when dropped, or when they snag on a piece of clothing.
Grip safeties
Most handguns have a manual safety a switch, button, or lever that must be disengaged to allow the gun to fire, even when a round is chambered. But some models also have a grip safety: a lever on the rear of the gun that must be squeezed with the flesh just below the shooters thumb to allow the gun to fire.
Firing pin blocks
Firing pin blocks prevent a guns hammer from striking the pin unless the trigger is pulled to move the block out of the way.
There are no governmental regulations on the manufacture of firearms. None. There are more than 30 regulations pertaining to safety applied to the interior of automobiles. None on firearms. As a result deaths and injuries in auto accidents have fallen to a level below that of firearms and continue to fall as gun injuries rise at 1-2% a year.
It's time we fixed that.