I have done this a few times in Colorado over the years, helping older hunters get their meat down off the mountain. It never bothered me, as I hunt for a lot of reasons that don't require me to kill something on every outing. I was rewarded once when another hunter helped me get a load down, a chore that took all afternoon.
Now that I am in my 70s, my assistance is pretty much confined to carrying incidentals, and usually only if I am already headed in the same direction. It just depends on whether I can be really useful and not just one more thing to complicate the operation.
