Every time we have this discussion someone brings up FedNow, and I will repeat the same question I always ask: when I visit the farmer's market this weekend, will anyone there be able to practically accept payment in FedNow? What would that even look like? (FYI the vendors take most cards, Apple/Google Pay, Venmo, paper cash, Square Cash, Apple Cash, etc.)
If the answer is "no for these reasons", then this probably shines a big light on why FedNow is not serving the same use case.