Your uncle is giving his opinion again, this time about the causes of homelessness, and, as usual, he is convinced he's right. "The only reason why anyone is homeless," he insists, "is because they have some kind of addiction to alcohol or drugs, or that they actually prefer to live on the street. There's no reason why anyone has to be homeless if they really want a place to live and they get their act together."

Do you think he's right? Why? Or if not, why not? Remember to support your argument with strong evidence. Please include as much information as possible.