> On an unrelated note, I've always thought the big problem is their market is too narrow. These companies should deliver literally anything that can fit in a passenger car. One example I know of is that auto shops do not keep parts for every car in the shop all the time. They contract out to parts warehouses. Those warehouses have employees which deliver your new carburetor to the auto shop that's installing it. There's no reason your Uber driver can't pick up pasta and a carburetor.

Looking at the Uber app, under Delivery > Services it actually looks like they do purport to offer delivery for basically anything. Groceries, Alcohol, Pharmacy, Flowers etc. I have never once tried it or met anyone who has. Maybe I'll give it a shot tho.