Seven instruments and a control system that doesn't argue with the user. Pretty sure I've spent as many hours as a passenger in various GA aircraft as commercial, and usually felt safer in a PA-18 than anything. Something about the "we can land darn near anywhere without having to call it a crash" aspect.
Your knowledge of aviation and what's "safe" is amusing. As an insider, I can tell you exactly where the higher percentage of accidents and fatalities are, and it's in GA.
And a PA18 will get you just as dead as anything else.
http://faadaily.com/2015/03/28/2-killed-in-crash-of-pipe-cub-single-engine-plane-near-pine-river-in-northern-minnesota/Those 7 instruments work great in an airfame that is not much more complicated than a willys jeep and weighs less.
A Boeing or Airbus....? Multiple systems, life support, engines, navigation systems. Hands off landings in conditions that most people won't drive in? good luck with that *expletive deleted*it in a cub.
The fatality rate is about 12 per 100,000 flight hours in general aviation. Takes a million flight hours to hit that rate in commercial aviation. US accidents, while declining, is about 1200 a year for general aviation.
So your perception of
feeling safer is false.