I just realized that Bank Of America, at least, allows their debit cards as well as their credit cards to be enrolled in Apple Pay.
This affords the same convenience, security and privacy of Apple Pay when you pay with a debit card ... The merchant sees nothing but an anonymous one-time token.
Apple Pay with credit or debit -- you pick 'em.
Compare that with CurrentC (if/when it arrives) -- where you're essentially giving open access to your bank account -- to...