If someone chooses to pay in Bitcoin, there is the existing 2-3% transaction fee $SQ could play with to incentivize both sides of the transaction.

The fee for merchants could be just 1%, saving them money vs. a credit card payment, and the purchase price could be 2% cheaper for customers. Or, customers could get 2% of the total automatically converted as “cash back” / “bitcoin back” into their (Cash app) wallet.

I personally would choose to “Pay in Bitcoin” all the time if Cash App automatically converted my fiat dollar balance into bitcoin for the merchant upon payment, and I automatically received 2% “bitcoin back”. Much better than “cash back”!