Because selling the thing that they apply for jobs on, get call backs from jobs on, or call the cops with....for the 20 fucking dollars you can get for it (if you are lucky) makes complete sense.
First off -- twenty bucks for a current iPhone. Haha. Good one.
Second, explain to me what this can do that this $10 tracfone cannot.
Being truly desperate means making some hard decisions, and being willing to confront some uncomfortable truths, and willing to sacrifice and put in the work to lift yourself out of that situation. Being a professional panhandler doesn't do it. You actually have to get smart and use every resource you have available, and that means that sometimes, downgrading that phone so that you can eat that week.
Again, this isn't me just spouting off. I lived this. For over a year. And you can fucking bet that there were times when it was hard, and I had to make some hard choices. But I did it, and I pulled myself up out of that hole, and I started with absolutely nothing. So you're never going to sell me on whatever fucking bleeding heart head-in-the-clouds theories of homelessness people put forward, because those of us who have actually been there know that these people hurt the ones that are actually trying to get themselves out of the goddamn hole.