[c22]

For what it's worth, these ride-share delivery drivers also grab multiple orders at a time if they can. It's one of the reasons delivery takes so long. I've observed drivers putting in additional orders that just came in (and waiting for them) while they are picking up. I also think they'll swing by (and often wait at) two or three places to get orders before heading out to deliver.

[FartyMcFarter]

There's a limit to this though. If the food gets cold or otherwise bad due to waiting too long, people will ask for money back or orders will go down.

[munk-a]

Compare this to a restaurant running their own service that can chose not to prepare meals while waiting for more orders to roll in - so the delivery might not be as quick as it potentially could be, but the food is fresher.

[rightbyte]

The main edge the restaurants with their own delivery has. UberEats just black boxes the restaurant excepting it to treat the delivery guy as a ordinary customer. That process has to be so wasteful compares to bulk preparation and delivery.