Look, I totally understand your curiosity and maybe even skepticism here, because it's a weird and messy ecosystem.
I'll make two very brief points, since I know we're limited.
One, I think it is interesting to look at mechanisms to reduce interchange costs and the things different countries have done. What I think has to be factored in as one analyzes this is the main thing those costs do. Those funds don't go to payment processors like Stripe. They mainly go to subsidize consumer credit issuance. To your point about the people you represent, a lot of this makes it easy for them to borrow on simple terms. They don't have to go and get a dedicated loan from the bank or something. I mean, they get credit cards. In Europe, where I'm from, interchange is regulated. However, generally speaking, consumer credit tends to be less abundantly provided. I think there's a kind of balance to be struck there.
The second thing is this: I don't want to harp on this too much, but I really think there's an opportunity here to do something around a real-time payment scheme that's instant and close to free. Then we can let the market adjudicate. If payments are too expensive in the card-based world, well, let's introduce a competitor and see what happens. I think introducing competition there would be very helpful.