The primary shelter for my city is across the road from me. All the strung out, chronic homeless people hang out next door at the post office, because it's publ

The primary shelter for my city is across the road from me. All the strung out, chronic homeless people hang out next door at the post office, because it's public property. They also hang out around my building, on the two streets around it. There is never shit. There are no needles. These people leave you alone. They are literally insane and on absurd drugs, but they leave you alone. Why is this true in Portland Maine, but not Portland Oregon?