At 25, I went on my first sheep hunt, solo.
Two 14 hour days, packing my ram out 18 miles, also had me replacing all the straps and backbands on the Kelty pack. The pack out weighed more than I did (150lbs). To get on my feet, I had to get into the pack, sitting down, roll over on my knees and climb the rifle to get up. What fun!
The next year I took a pack-dog and my girlfriend in there, for another ram.
The following year, she shot a ram larger than either of mine, on our honeymoon. She might not be all that smart either...
At 75, I'm no smarter, same body weight, but older and less motivated and in-shape. The 90 lb Lab has long since died. I still have the girl. And the pack (well, actually a clone acquired 5 or 6 years later with a cabin purchase - I broke the frame on the first one packing moose).
