This is an interesting discussion of the causes of homelessness, directed by Mark Thompson (who I met studying television production in Wagga).

One thing that resonated with me was the bit about pets preventing people from accepting housing because I found myself between homes a few times in my early 20's and my dog became an issue on numerous occasions.

It drove home to me how easy it would've been to end up in a less fortunate situation at a time when I was trying to get financial support to study at university.