My theory is that the homeless, when exposed to the virus initially, are exposed to a SMALL & NON-CONTINUOUS virus load because of being out of doors in the sunshine and the wind/breezes. Small and only sporadic exposure gives the body time to build up defenses before being overwhelmed.
This contrasts with people indoors (such as nursing homes) who are largely stationary and can easily be exposed to a CONTINUOUS & LARGE viral load. The body, in these conditions, frequently will not have time to build adequate defenses before being overwhelmed.
LESSON LEARNED: Go to the beach and/or other outside location(s) for your first exposures to the virus. Alternatively, become homeless for a while.
At first glance this does look alluring. No bills to worry about. No taxes troubling me. No cable tv with nothing of substance to show. No depressing news networks scaremongering 24-7. I think I would miss regular meals. The lack of hygiene. I absolutely have to have a hot shower before I go to bed or else I have this icky itchy feeling like somethings crawling on me. I don't think a pond or ditch water would do it for me. But I can see me holding a panhandling sign proudly stating "Need Money. Big Foot is holding my drug dealer for ransom". or something similar.