> You mean worthless like those trillions of dollars worth of cash out there? ...which is getting used less and less in the developed world. In an increasing n

> You mean worthless like those trillions of dollars worth of cash out there? ...which is getting used less and less in the developed world. In an increasing number of countries, carrying cash is a thing of the past, or done as a rarely-used backup. > Worthless like anything people used to trade for thousands of years before credit cards arrived? And which have fallen or are falling out of use when competing with systems that better serve the needs of the users. And safety from fraud and theft is a pretty big need. > Oh, and there is no fraud prevention baked into credit cards. Admittedly it's more bolted on than baked into (since the system is so old), but it most certainly is there. > Sellers hate credit cards because they have to deal with all that fraud Which doesn't mean there's not fraud prevention, just that it often fails. As it always will in every system, because it's a really hard problem. And a human problem, not a technical problem.