This is a huge deal for places like India, Pakistan, Nepal and Bangladesh where the vast majority of people do not have a bank account from which they can get a Visa or Mastercard. Probably 85%+ of the population. Those who do have basic bank accounts (we're talking about the bulk of the population whose monthly salary is less than the local currency equivalent of $400 USD) can't get credit cards or are unwilling/unable to jump through the hoops necessary to do so.