> what does that even mean (like they only abuse alcohol?)?
Only about 35% of the homeless population has an addiction. Less than half of the homeless population neither has an addiction nor a mental illness. [1] Just because there is lots of substance abuse (and yes, there certainly is), doesn't mean that the average homeless person does drugs. When you talk about the homeless population, you have to include people who are really quite like you but had a bad turn. Many of them have a story like "I got a mortgage with a large down payment just before 2008, when I lost my job and then shortly my house. I had to go to the streets because I had nowhere else to go."
Only about 35% of the homeless population has an addiction. Less than half of the homeless population neither has an addiction nor a mental illness. [1] Just because there is lots of substance abuse (and yes, there certainly is), doesn't mean that the average homeless person does drugs. When you talk about the homeless population, you have to include people who are really quite like you but had a bad turn. Many of them have a story like "I got a mortgage with a large down payment just before 2008, when I lost my job and then shortly my house. I had to go to the streets because I had nowhere else to go."
[1]: https://sunrisehouse.com/addiction-demographics/homeless-pop...