EDIT: @pbriet (HN throttling, can't reply directly to your comment)
In the US, Zelle does $490B worth of volume annually (2021), all CC networks combined do about $1.9T (2021). That's significant volume for a real time payment system, and it's not even fully baked within the US financial ecosystem. FedNow [1] [2] [3] rails go live next year with instant settlement, moving up to $500k in value for 5 cents (what the bank partner charges the banking customer is up to them). I expect that to move the needle, considering merchants can charge a CC surcharge per SCOTUS' Expressions Hair Design v. Schneiderman (No. 15-1391) ruling. If you compare India's UPI implementation to CC volume, the open platform is fairly successful [4], hence my thesis (and this pattern is repeated, you'll find, across other economies where a low cost real time payment system is present).
CC companies are raising their rates because their margin is soon to be compressed. Ignore BNPL, that's a feature/product masquerading as a business (see: Klarna's down round, Affirms' decline in share price, etc) and regulators are coming for it [5].
TLDR A new fintech product from the Fed is likely to shift higher cost transactions from legacy payment rails to a utility product.
[1] https://www.moderntreasury.com/learn/what-is-fednow
[2] https://frbservices.org/financial-services/fednow/community/...
[3] https://corpgov.law.harvard.edu/2020/08/31/fednow-the-federa...
[4] https://www.business-standard.com/article/finance/upi-most-p...
[5] https://www.pewtrusts.org/en/research-and-analysis/blogs/sta...