As a note, while the dabbawalas are successful, there was a comically excessive food-delivery startup bubble in India around 2015 full of companies that failed

As a note, while the dabbawalas are successful, there was a comically excessive food-delivery startup bubble in India around 2015 full of companies that failed similarly. It comes down to the basic issue, I think, that Uber made everyone worldwide excited about the idea of "software eating the world" but you can't wish away the issue of margins and unit costs.