I agree that "KISS" for sights is the way to go.
I am 57 years old, and lineing up sights with bifocals is not easily done, and buying a seperate set of eyeware with corrections for a rifle and pistol is not practical. I would opt for a 1X or 2X small optical sight for each weapon carried. I would also opt for a bolt action .22 and a semiautomatic heavy barreled Ruger pistol if I had two guns, or a semiautomatic rifle if I only had one gun. If I am only going to have one gun, I would take a rifle any day over a pistol, the weight be damned.
Bountyhunter