decreasing risk

if households buy canned food with long shelf life 

as a preparation against emergencies 

then the member of those households 

could eat that food with long shelf life 

when that food nears it's expiration date 

or those households could give that food to poor and homeless 

when that long shelf life food nears it's expiration date 

it would be like a private social security system 

where households increase their own survivbility during emergencies 

and increases the survivability of poor and homeless 

and members of those househoulds could benefit themselves 

if some of them became poor and/or homeless in the future 

like a distributed private social insurance 

for the members of the households