On: Credit Card Signatures Are About to Become Extinct in the U.S

[valleyer]

That's true (and an admirable practice for the reasons you specify), but at that point it's no longer a matter of "here's a $50, keep the change".

I and many people I know carry cash infrequently because of the ubiquity of credit card acceptance.

Anyway, none of this is to disagree with you, but just to point out that your example might be less common in the U.S. than you think.