Mobile payments, particularly in physical locations, have a tendency to fall into the category of solutions in search of a problem to solve. It might be fun to wave a phone at a POS (at least the first few times), but it’s not really all that much better or even really qualitatively different than swiping a card.
But that of course assumes that one is purchasing something smaller than a breadbox, which luckily most consumers are during the vast majority of purchases.