What I don't understand is why DD gets any cut of the store's profit. They should be paying retail like anyone else, and their customer paying for the delivery costs.
What I don't understand is why DD gets any cut of the store's profit. They should be paying retail like anyone else, and their customer paying for the delivery costs.
It's a finder's fee, a very old and ordinary concept in business. The more sales you can bring to a company (or could divert to competitors), the more skin in the game you have. That's not to say I think these companies aren't in some ways anticompetitive to the detriment of merchants and DIY shoppers.
In theory it's because that customer wouldn't be purchasing without DD. In practice it's a shakedown.
Elsewhere in this post a store owner talks about how DD is a necessary evil. How they have convinced a big chunk of customers to only use DD to order food, and you will lose out if you aren't on the platform.