There's one more limiting factor other than size and mass. Age.
As my better half and Ihave progressed through senior citizen status, we've had to confront the simple fact that we can no longer do what we did 30 years ago. Unfortunately, that also means pack weight. We both love to get out in the woods and away from people. That means we hate camping in camp grounds close to the car camping sites where every idiot that has a generator wants to have his little TV or stereo going. Why the hell did they leave home?
But after the early 60's, we had to embrace the UL back packing if we ever wanted to see the peaceful woods again. That meant leaving home any object that we absolutely didn't need. That meant learning to split wood with a light weight saw instead of a heavy hatchet or large knife. Light weight knives that were good cutters, but in the 2 ounce range. Aluminum framed small revolver that was half the weight of the steel frame gun, and only one reload. Age steals everything from you eventually, so you have to learn to compensate as you go on. Add up ounces, and you get pounds. Sometimes we do without the fire, and have just a small alcohol stove. Gotta do what ya gotta do. Sometimes we've had a trip where the only cutlery we had was the Opinel in her pocket, and my Victorinox Farmer.
But canoe camping, I'll bring a hatchet or machete, and real camp stove. As long as it's sitting in a pack in the bottom of the boat and I don't have to carry it. May even have a small cooler with a couple steaks in it!