This is b.s. for numerous reasons:

- You can have the PIN reset for all of those cards so that they all match, (or better we should be using PK based push notifications to a smart phone app; plug in the card, and you get a push notification to deny/allow on your phone, instead of entering in a PIN.)

- Signatures aren't even verified the vast majority of transactions. They only come into play if you catch fraud and report it. So it's used after the fact, not in advance.

- Signatures are predicated on pen on paper on a flat writing surface perpendicular to gravity. Your signature is not at all the same to a handwriting expert if you change any of those things, and in particular the digital capture of signatures is complete utter bullcrap: no angular, or pressure information is captured. We should just use smiley faces on all such POS systems, in lieu of even attempting a signature (it is in fact what I do).

Digital signatures are Tonka Toys. They are nothing like a finger print.