I talked to a guy once he carrys a NAA 22 revolver, hes about 75 or so. Carry hammer down on empty chamber so only 4 shots..
Thats silly My NAA has notch between cyl to lower hammer in This allows fully loaded and safe .
I would look to a revolver For home a used S&W model 10 4inch barell Then use wadcutter ammo . This target ammo and soft recoil but the wadcutter does good job. Before HP ammo many of us carried 148 gr wadcutters in our snubs.
I had a friend in his 80's he carried a Colt Jr in 25 auto every where he went.