I get no use out of the vast majority of objects in my house on a day-to-day basis. I know people in my community need objects that I have. I know people in my community have objects that I need. If they/I had those objects when they/I needed them, the entire community is more productive and "worth more."
If you have ever lent tools to anyone you will quickly realize why this kind of utopian sharing doesn't work. Most people have terrible standards for caring for or maintaining things even if they are their own things, much less someone else's. Thus the stigma against lending or borrowing tools in the trades.
