It’s good for people without transportation, too. A family of four taking the bus where they need to go? Fine. A family of four hauling a family of four’s worth of groceries home on the bus? Less fine. Especially if the bus stop isn’t actually close to their home. Then it’s a family of four (if you can even get them all together at the same time because you need the extra hands) hauling a family of four’s worth of groceries (including bulky stuff like toilet paper) down city blocks or through industrial areas or rural areas or wherever, for however long it takes. Throw in a broken bag now and then, and… yeah. Grocery delivery is a much better option.