> But if Bitcoin is competing with another crypto such as Bitcoin Cash when buying the pizza... Is it? Where do I have the choice to pay with Bitcoin Cash? >

> But if Bitcoin is competing with another crypto such as Bitcoin Cash when buying the pizza... Is it? Where do I have the choice to pay with Bitcoin Cash? > People don't want to spend extra money. So they shouldn't use Bitcoin Cash, which at current exchange rates buys them fewer pizzas per unit than Bitcoin does.