> 1. A fraction of the Indian populace is so poor that the cost of operating a cash economy (printing currency, transporting it securely, stocking and operating ATMS and bank branches) might prove forbiddingly expensive to service rural areas -- leading to financial exclusion. So, for them, digital infrastructure (which reduces cost of transacting) is a matter of life support, rather than the luxury that it is in the developed world (where everyone has bank accounts, access to cheap credit, and can swipe plastic cards everywhere).

So poor, but well-off for paying for mobile phones/laptops and internet, and educated enough to understand the app interface/language?