> bulk.
That is also a keyword there, we don't have money to buy in bulk. I only have 5$ for food...not spending it all on one item or starving the kids till I have the money to buy bulk.
Obviously I haven't lived everywhere in the USA but in most states if you are poor enough to only have $5 to spend on food to feed your kids you qualify for SNAP benefits which will give you a few hundred dollars for food.