Why should I pay in BTC through Bakkt instead of USD ?
BTC was invented as p2p payments, now everybody wants to control transactions and get a fee
The issue of course is the transaction rate is so low and the system so inefficient it cannot possibly meet its stated goal as a payments system without trusted, centralized networks layered on top. That layer meets none of the goals of the underlying meaning the underlying can simply be elided, and we’re right back where we started but without an Argentina of power wasted.
It's far from perfect but I feel the case you are making is disconnected from the actual experience today.
Luckily we have loans.
Merchant processing is something I happen to know way too much about. The fact it takes a few days to settle is an implementation detail. Square for instance will front you until settlement and pay you out overnight, free. I believe all merchant acquirers have followed suit.
This aspect is not a real problem for anyone anymore.
Of course that's not true. It creates a separation of concerns where the user chooses the trade-off which is most appropriate for them between centralization and decentralization, and can easily move to a different solution if their needs change.