How about hygiene? Where do you think they relieve themselves? How many times a day do you think they'll need to use a toilet and how many times do they find one? Hint: they don't really care. Source: experience living in SF.
See: https://conversationswithtyler.com/episodes/alexander-the-gr...
"ALEXANDER THE GRATE: So, one thing about food insecurity — everybody talks about that, but nobody mentions toilet insecurity. What comes in has got to go out, and that’s not readily . . . Before the Eisenhower Memorial, with a free restroom here — that’s back up by the resources by the way — the closest one to the area was at the Washington Monument, a mile away, basically."