Back in the day when everything was cash and it was much less digital and ID requirements, sure maybe.
Getting a job being homeless aint that easy.
Let alone getting a job and the trying to simply cash your check if you don't have your license
And being unkept isn't going to get you a job even at mc donalds, best you can hop for is someone letting you do janitorial work and paying you cash.
And even then you have a plan to save your money without getting jacked and a plan to try and get a low income apartment meaning your probably going to have to get some kind of phone then have transportation back and forth to whatever agency you need to visit as well as have your licenses and paperwork in hand.
Most of us take it for granted but actually losing everything and having to work your way back to the slums isn't something we have to deal with, even the poorest of us prob at worse grew up in section 8 and not under a bridge nor did we spend time sleeping in parking lots with no ID