> Uber, Lyft, DoorDash, and Postmates derive a huge share of their sales from California: 41 percent of all Postmates' US sales are in California, 27 percent wi

> Uber, Lyft, DoorDash, and Postmates derive a huge share of their sales from California: 41 percent of all Postmates' US sales are in California, 27 percent with DoorDash, 24 percent of Lyft's rides, 17 percent of Uber's rides, and 13 percent of UberEats' sales. Not the main topic of the article but I'm surprised at how concentrated Uber and Lyft's revenue is the state of California. I can imagine smaller / newer companies getting started in one location and being lop sided in their sales, but those two are huge and have been around for years. That's some serious concentration of regulatory risk!