I think for two reasons: Food delivery is essentially rent-taking, since once someone begins to use it, they'll use it indefinitely (until a better service or f

I think for two reasons: Food delivery is essentially rent-taking, since once someone begins to use it, they'll use it indefinitely (until a better service or format comes along); and secondly, I see grocery delivery as a way to trojan horse in to same-day parcel delivery, since if a person is delivering your groceries, the marginal cost of having them also deliver a package is tiny in comparison to the cost of delivering just the package.