Don't know about that. Costco banned Mastercard and they're doing fine.

They wouldn’t need to create a new payment processor if they could just swap to Mastercard. Thus it was also implicitly excluded by Chick-fil-A in their proposal.

> would likely result in its bankruptcy.

Maybe? Depends on how customers are sold on the mission. If it's sold as protecting children I could see a number of people ditching their cards.

> Starting a holy card that doesn’t work at gas stations etc is an extremely uphill battle.

True. It'd take a large amount of initial capital and would likely need a targeted and regional rollout with some nice incentives to the merchants.

Yeah, 30 years ago this might've been able to get off the ground. Today? Not a prayer.

I use my debit card at gas stations