Economies of agglomeration, similar to Amazon. Having one app to order everything from is very convenient and the average person prefers that.
That doesn’t make something a natural monopoly. Nor does “I’m lazy.” And I say this as person who is VERY lazy about a lot of things.
I don’t doubt it’s convenient but that’s what you’re paying for. Anyone complaining about the prices at convenience stores?
Convenience isn’t the factor here - having a network of delivery drivers, many of whom can remain productive transporting people when they’d otherwise be idle, having established relationships with restaurants, the support infrastructure to work with them a, tech platform and a user base makes it difficult for new entrants.
…i could order from newdelivery with the 3 restaurants they’ve managed to sign, or I could use uber.