> How do you convince merchants to accept your card (and potentially additional payment processing terminals) when none of the merchants customers have the card

> How do you convince merchants to accept your card (and potentially additional payment processing terminals) when none of the merchants customers have the card. Well, at least at the national scale, it can and is done. You start with terminal providers or select the niche that doesn't use them at all (online payments). Then you need top 5 banks to support your new method in their mobile apps/transaction systems. All is left is massive advertising campaign, and if it is successful, other banks will join. https://en.wikipedia.org/wiki/Mobile_payment https://en.wikipedia.org/wiki/Mobile_payment contains a huge list of attempts that worked out (or not). It is going international where things get very tricky. Even Paypal and Stripe had to be based on Visa/MC, there are no other worldwide options than credit cards. It is a bit better if you want to only cover EU(thanks to PSD2 banks had to provide APIs), but that is all. Google's and Apple's payment systems could become independent from Visa/MC but people just don't want to top up some weird accounts when they can just "connect" a card instead.