I agree. Its not that hard to have a month's supply of groceries in the pantry, and everyone should make it a point to accumulate enough to get through at least that period of time... enough for themselves and the stray relative who is sure to turn up on their doorstep. You won't turn them away, so you may as well include them in your planning.
There is more thanonemof my relatives I’d have absolutely no problem turning away from my doorstep.