Well with PayPal now slowly offering crypto payments to vendors (AMC to start) and with all the other people doing through other means commercial hosted ways (Coinbase Commerce / BitPay / etc) it's only logical that other businesses that are in the payment processing field get into it. If a merchant has to go elsewhere for processing some form of payments, it gives other processors a foot in the door so to speak.
Not going to happen soon, but lets say a merchant who wants to take crypto but not hold it goes out and does some research. They find Coinbase. Fine, they process the payment and take their cut and send it off to the merchants checking account. A few months later someone in the back office of Coinbase Commerce is sitting there with the word from their boss "generate more revenue". And they have the thought of we are processing crypto payments for all these people, how about we grab their credit card processing business too. We already have their info and the tech to do it. Lets see if we can undercut their current rates and grab that business.
-Dave
Coinbase probably has some money invested in fraud detection, but I think that most other merchants service crypto companies don’t, and I am not sure if Coinbase’s anti-fraud systems can translate into preventing cars related fraud.
In addition to fraud detection (and the costs associated with undetected fraud), there are also costs associated with participating in various networks, such as Visa or MC.
Credit cards are also a very saturated market, while crypto is not. I would personally predict that various credit card companies will get into the crypto business.