Likely a term developed by the aristocratic community that cares for us chattel-humans.
I think it is a healthcare thing.
Food insecurity. Housing insecurity.
The VA doc ask if you have any concerns about food over the next 12 months. Or fear you won’t have a roof over your head. The box they check is labeled food insecurity or housing insecurity.
It’s part of their anti suicide focus. Very common among veterans.