I live in a smaller town where our homeless population is almost exclusively made up of couch surfers, but you do occasionally see people sleeping under bridges. One aspect of it is that there are a ton of “utility apartments” located above bars or in leased plazas where the leases are weekly and the regulations are just not enforced for whatever reason. So in effect they’re long-term hotels that you can rent for like $400 a month. They’ve got room for a single-size bed, a toilet, a little shower, and a hot plate. I know a dude who lives in one, sells stolen Marlboro’s out his window, and calls himself Mick Donalds. Super chill dude