I think a lot of us slow down in the killing department as we get older for a few reasons. One of them is that we usually grow out of that "got sumpthin to prove" mind set. Another for me is that I've come to enjoy the relaxing aspects of hunting camp as much as the excitement of the hunt. I work a job every day that pretty much provides a lot of excitement as well as kickin my ass physically. When I get a few days or a few weeks to get out in the boonies, I don't feel like making too much work out of it.
Also, if you've ever had the experience of finding a bunch of two year old ducks, or other game meat that hasn't made it to the table in too long, you kind of realize that you need to slow down the killing.
I've got bunches of old hard copy photos that I need to scan, from my "got sumpthin to prove" years, and memories of some of my best hunting years when I didn't even take pics. I grew up in a place where I could walk about a quarter mile from the house and have good success hunting and killing almost everything except elk. That's a lot different than it is for most folks these days, and also one of the reasons that many don't worry too much about the kill anymore I think.
Here's one of those old pics from back in the day. I guess I was still in my twenties here, and even then, that many coyotes at one time made for a lot of hard work. One or two seems better these days. jd