Its sad to see what happens with all of the stuff that someone has kept, thinking either that they might need it in the future, or that their children (or grandchildren) will make use of it. Then when the old person dies, the family looks at the house or garage or barn or whatever full to the gills with all sorts of stuff and decides it is too overwhelming to go through all what is there, and instead has it all just hauled off the local dump. The Swedish have a concept called "death cleaming" of reducing your belongings to what is truly important to you, and starting the process early in your old age.
I've never been a hoarder, or even a saver of old stuff, and periodically have gone through closets and storage areas and my garage and gotten rid of stuff while organizing what I still have kept. I only have a very small number of firearms, not like so many on this forum, and I probably (at the age of 81) should thin my "collection" to the few that I carry or count on for home defense or regularly take to the range. I know that my grown kids will not want the guns, and will see disposing of them as an unwanted chore, but I haven't yet gone through that extreme "thinning". In part, the low amounts I would end up with for selling some of the guns is not enough to offset the pleasure I get from just holding and looking at them, even if I am not shooting them.