We had a post here last week about soda taxes in Philadelphia and it seemed like common sense that by making sugary drinks more expensive, you are encouraging people to consume it less, which results in fewer people drinking it.

We can discuss this with no implication that there's a static amount of soda consumption in the world, or that people want to be obese from consuming it. We understand life is a series of choices, "when to consume sugary drinks" makes up some of them, and that by disincentivizing that choice, people are more likely to choose a different beverage.

Nobody "chooses" homelessness, but like anything else, becoming / staying homeless often is the result of numerous choices, some of which are easier than others for various reasons. When you artificially remove bad consequences from some of those choices, it is not surprising that those choices are made more often.