We can't because we put them there for this reason. Zoning regulations affecting occupation like needing to be connected to water, sewage and sometimes electric

We can't because we put them there for this reason. Zoning regulations affecting occupation like needing to be connected to water, sewage and sometimes electrical grid instantly prevent most of this. We could give people land and a shelter; but they wouldn't be able to occupy them, and we are UNWILLING to change this.