This works in theory, and in practice for some people, but not everyone. For example, I don't have a lot of 'stuff' but I do have a couple of hobbies that require 'stuff' like rock climbing and backpacking. My girlfriend who lives with me is an avid scrapbooker, which inherently means she will have a lot of stuff.
It's easy to not have 'stuff' if your entire life is online, but once you start to accumulate hobbies that aren't online then not having stuff gets much more difficult.
My goal is to not have stuff that doesn't serve a purpose. Nic-nacks, gifts from trips, decorations, etc.