Discarded by a society not interested in social or environmental justice. That is the cause of homelessness. A betrayal of human rights by fellow Australians and a complete lack of interest in the ongoing housing crisis by Government. 

Australian Homeless Deaths Research. 

9 avoidable deaths per day in Australia.

https://www.aihw.gov.au/reports/homelessness-services/specialist-homelessness-services-feature-analysis/contents/about