I am now 62 and use the 12 or 20 for duck hunting (in a blind, sitting).
the 20 or 28 for pheasants
the 28 or 410 for quail with dogs.
The 20 gauge is usually equal to 12 gauge in registered skeet.
So for fun shooting and other than crane and goose hunting, you should be in a fine position
Mike


USAF RET 1971-95 [Linked Image from jpgbox.com]