>>211876958They just die or something.
Either social services bring it or order delivery, or the family helps.
But the funniest thing in your question for me is that why do you think that such a cart with a person can fit in a store? Only in the States all stores are huge supermarkets with a parking lot for 1000 cars. In ordinary countries it is a small store on the first floor of a house or in the basement of a house on 70-200 square meters (I don't know how many squirrels that is or whatever you use for measurement)