[partisan]

Regarding point #3, I would be weary of putting my food in the hands of an unaccountable person. If the person works for the restaurant then they have some level of responsibility for the end user experience. If they are working temp for some service then they are less inclined to care about how the end user receives the food. They might even be resentful of the customer receiving the food. I've seen and heard of people doing some really horrible things to other people's food and I assume the worst.

But if you are going to make this a viable business model, you might do the following: enlist anyone into the process. If I am walking downtown at the moment and there is a delivery along my route anyway, I could pick it up and go. It would result in having many more workers who are earning less each. They are not employees by any argument, just people doing random tasks for a minimal part of their day. With a star rating, of course and possibly some upfront online training.