Don't trust, verify. It makes sense to Visa since they are in the business of verifying trust. Proof of transaction history (ie credit) is public and inherent to blockchain, apparently this is taking some time to realize.
Visa is in the payments business. The US Federal Reserve ("The Fed") is going live with an instant payments service in 2023-2024 [1] [2]. What does that leave Visa with? Hence, the existential crisis (first, trying to buy Plaid, and now "Crypto!"). [1] https://www.frbservices.org/financial-services/fednow/index.... [2] https://corpgov.law.harvard.edu/2020/08/31/fednow-the-federa...
People can already use debit cards with no effort, and merchants can accept that at very minimal costs. But still, most merchants are hesitant to offer lower prices to purchases with debit card because they are betting people spend more with credit cards.
I don’t expect this to change when the Fed’s system comes into play. I would actually expect the Fed’s system to replace cash transactions more than credit cards.