I think it's important to note a couple of things. > The city of San Francisco released data last week showing that 55% of homeless individuals rejected shelter when offered it I think it's very important to understand why people turn down the beds. There are several reasons- * Shelters have very restricted hours, so if someone has a job that includes nights they likely can't use a shelter. A large number of homeless…
You missed the most common reason: * Drugs and alcohol are not allowed
I know this is anecodotal (as is your comment), but I've spent a lot of time around the homeless population. I was "housed homeless" for a year, and my sister was homeless for several years due to mental illness.
The rate of drug use amongst the homeless does tend to be higher than the average population, and I don't think there's any denying that. However, it isn't nearly as universal as people seem to think. The average homeless person is homeless for less than two years, and it is normally due to financial reasons. Given programs that provide housing these people can normally come off the streets and live great lives. The simple fact that so many people manage to bounce back shows that what the average person things of homeless people isn't the actual reality.
The other thing, and this might sound obvious, is that the people who do drugs or drink simply take their stuff before they go to the shelters. These aren't people with hundreds of dollars to blow on their addictions. They often panhandle, eat, drug/do drugs, and then look for a place to crash. This also isn't the entire homeless population, just a smaller portion of it (that people use to justify not helping the larger portion, even though the whole population does need help).