In order for a new entrant to come in they need to grow both businesses and consumers at the same time. Which is hard with no competitors. But very hard with cash rich companies like Uber trying to stop you.
We saw this all play out in Australia where we initially had Foodora and Deliveroo. Then Uber joined with aggressive marketing and pricing. They pushed Foodora out and the number of businesses in Deliveroo is dropping. It is going to be a winner take all situation. At which point prices will rise and the profits will roll in.