I just read about a US based business called Doorstep Delivery. They help small restaurant businesses sell to more customers by offering a delivery service in the local area. This can be a big selling point for a restaurant which wouldn’t otherwise be able to deliver.
Apart from pizza, Chinese food, Indian food and the occasional sandwich shop, most restaurants do not normally provide delivery, and if they do, it takes too long. Doorstep Delivery helps both the restaurants and the customers, by providing a quick and reliable solution that makes things more efficient for both parties.
Is this a business you could start locally? I can see no reason why not. The restaurants have very little to lose (and plenty to gain) by extending their service out to include local delivery.