According to this study of homeless people in nearby Santa Cruz (https://blog.civinomics.com/2015/04/07/the-reality-of-homelessness-in-santa-cruz/ https://blog.

According to this study of homeless people in nearby Santa Cruz (https://blog.civinomics.com/2015/04/07/the-reality-of-homelessness-in-santa-cruz/ https://blog.civinomics.com/2015/04/07/the-reality-of-homele...), ~1/3 the climate, ~1/5 each the social programs and lifestyle, followed by several other factors. I imagine the views of SF homeless are similar.