Curbing interchange doesn't hurt Visa/MC, it hurts the issuers. Thanks to the Durbin amendment debit interchange is on reasonable levels in the USA and now EU-c

Curbing interchange doesn't hurt Visa/MC, it hurts the issuers. Thanks to the Durbin amendment debit interchange is on reasonable levels in the USA and now EU-cross-border credit interchange is on about the same levels. There are even special tricks you can play to get EU-cross-border credit interchange for domestic transactions outside of the EU. If you want card holders to use cards with less interchange you have to incentivize them. As long as the card holder has only benefits from using with interchange cards and bears none of the costs they will keep using high interchange cards.