OP, I agree with you about backpacking!
I have always loved the outdoors. But, I’ve struggled with orthopedic issues since my pre-teen years…which helped contribute to childhood obesity, etc. I had to sit out when my childhood Scout troop did all the truly high adventure stuff.
My first real backpacking trip was in my early 20’s. By then I was fit enough, and as long as I kept my pack light and my daily mileage under 6-8 miles, my legs could handle it.
Once I hit my late 20’s the pack went away. No time. No opportunities.
Fast forward a few decades. My youngest is 8 and my oldest is 14. It’s time. The difficulty is finding a good route +/- 6 mile days (my legs are still bad and a pack don’t help). I still managed to find good routes a couple times each year. Mostly the Sierras & Glacier, though we hit a few other notable destinations too. Our longest day over the years was about 12 miles, over the Stoney Pass in glacier. That day was brutal on me.
Here’s the fam on one of my favorites; Kings Canyon via Kersarge Pass. My wife is the photographer. She’s an outdoor machine (and a real hottie, btw)!
In the midst of it all, I spent a few years as a Scout Master, and took a bunch of 12 year old boys on a 3-day backpacking trip, the first real backpacking esposure for most of those kids.
2 of my 3 kiddos are on their own now. The older two are outdoor fanatics!
Backpacking is the greatest (except for maybe mountain biking). I wish I’d been blessed with the legs for it, but I’ve played the hand I was dealt to it’s fullest.