Once a year, the entire neighborhood holds a collective garage sale.
Everyone puts put all the clutter and crap they don’t want anymore.
Which makes more room for them to buy more crap which will clutter up their homes.
In the end, the clutter and crap just migrates from home to home.
Sure, some people come from outside of the neighborhood.
Which offers an exit strategy for some of the same crap in the neighborhood getting passed around.
But then, people in the neighborhood go to other neighborhood garage sales.
Importing a fresh supply of crap to keep passing around.