[shalmanese]

If you have a small child, then just leaving the house to run an errand is an entire ordeal (esp if baby is sleeping right now). It's worth paying some non-trivial amount of money to avoid running errands. If you're also lower socio-economic class, then that leaves the only food you can afford being fast food.

People love to talk about these services as if they're only for young, single, hipsters but a significant portion of their use come from people with some kind of life limitation (same as the Whole Foods peeled oranges in a plastic box that people love to make fun of. These are a godsend for people with poor motor skills).