The 'asset wealthy' being spoken of here use credit all the time as they arent in a liquid position to transact at that point, but provably do have the capital in assets to satisfy the transaction. And we all use credit, often in very reasonable situations.

For instance, a first home buyer borrowing when interest rates are low, locking in a low interest rate for a long period, can be very beneficial for the individual concerned, where house prices get higher for an extended period. Even if it does lead to some perceived realty market stickiness.

Widespread use of Credit is not the problem (in this regard), and in fact could be a sign of a more trusting global society beginning to establish itself.

Credit is also bot new. It is the OG, and has been with us since well before tokenised money. Read David Graeber's 'Debt'. And look up debt sticks, or the origin of the yin-yang symbol. The essence of David Graeber's argument is tokenised money, uniquely gold, is used when you transact with someone you are unable to trust, credit is used when you can trust.

It's of course more complicated now, the vendor is not so reliant on trusting the individual in front of them, and more reliant on the name on a bit of plastic in their pocket.