According to world bank 1.7 billion people ranging from 200 million in China and India each, 100 million range in Pakistan and Indonesia, 45 to 65 million range in Mexico, Bangladesh, Nigeria etc. This shows that a lot of rural environments have no bank. Real estate, renting a building, is one strong marketing technique used by banks to garner customers in a place. And these stats proves that banks can't reach out to all rural environment. Bitcoin on the other hand, requires only a smart phone and internet connection  to send and receive bitcoin anywhere in the world; no buildings needed. It also opens a portal for users in high corrupt countries, 68.9% of 180 countries, to keep their funds safe. In Sudan for instance, Government once forced into people's houses to seize and destroy their treasures.

Hence with 1.7 billion people staying unbanked, added to the increase of people who don't rely on banks, Bitcoin provides them with numerous options why they should use bitcoin for different purposes like sending money to relatives in different countries at a very low fee.



https://www.researchgate.net/publication/370892944_Bitcoin_Is_Full_of_Surprises