I am experiencing the opposite of you.
I am now in my 50's and have been really ramping up my hunting in the past few years. This year I hunted Turkey in the spring, leave for a week of Moose Hunting on the 18th of this month.
Three days after getting back from the moose trip I will be in my bowstand because archery deer starts. And on one hand I hope I still have my deer tag in November so I can spend a week on the gun hunt - and if someone in my bunch has a tag left and wants to go out, we usually sit in the late bow until it's too cold (because while still motivated, we are getting "soft" and like to be comfortable - I won't freeze anymore or get soaked "just to hunt"). But in the past two years it has been nice sitting the stand for a couple of hours on New Years Eve.
And in between there will be some bird hunting, coyote's and maybe even a black bear if one gets in the way.
Why the renewed interest on my part? I blame it on my father.
He started taking me deer and moose hunting before I can clearly remember. As I got a little older not only did he take me out of school for a week in November, I also got to carry a "gun" while we were deer hunting (ok, it was a 22 pump, but I was "cool")
By the time I was a teen life had got in the way for my Dad - work, community groups, other commitments plus the "new" hunting restrictions (pool systems, regulated deer hunts) plus all the "private land" had put a damper on his hunting endeavors.
He always said that when he retired @ 55 years of age he would get back into some "serious hunting".
Well, he just turned 80 last June and hasn't hunted a day since him and I last went out 30 some years ago. He retired early at age 53 because his diabetes was so advanced that they were considering amputating one of his legs. He never got back into any kind of outdoor pursuits, never mind our remote moose trips or deer hunts over dogs.
So for me, as I approached 50 I realized my days could also well be numbered - at least my hunting seasons. So every year that I'm able to walk the woods or climb into the stand I WILL be there.
I figure there may well be many years when I "can't" hunt that I'm not going to toss away the ones that I can. And when I'm lying on my death bed I just can't see myself thinking "I'm sure glad I didn't go hunting back in 2015 - I had a much better time laying around the couch for that week".