There can be no reasonable right to live on sidewalks. Society needs order, and hence has a right to a minimally civilized ambience in public spaces. Regarding the homeless, this is not merely for aesthetic reasons because the anesthetic is not merely unappealing. It presents a spectacle of disorder and decay that becomes a contagion.
George WillOnce when the Yankee's Lou Pinella was batting he questioned a Palermo strike call. Pinella demanded, "Where was that pitch at?" Palermo told him that a man wearing Yankee pinstripes in front of 30,000 people should not end a sentence with a preposition. So Pinella, no dummy, said, "OK, where was that pitch at, asshole?"
George Will