Tech millionaire builds 99-unit tiny house neighborhood for homeless Canadians - rent is kept at 30% of income, the large majority of residents pay a maximum of $200 — including all utilities
I know they do that in trailer parks, but you still have to make it to the shelter. And there are a lot of people who would prefer to gamble than do that. Trailers at least have heft to them, and multiple walls to catch flying debris. You can duck into a bathroom for instance if things get real bad real quick.
Edit: but I clearly haven't thought this out as the people would otherwise be homeless and have 0 shelter