Credit Cards at Retail: Why not take pictures?

Credit Card Terminal
At Super Market

It's amazing that the credit card industry hasn't been totally wiped out of business by a more efficient approach. Everyone knows that credit cards are used for fraud all the time. Yes, somehow, the retail terminals still have us signing onto a screen.

How stupid is that?

Why don't they just require us to look into the screen and take our picture.  Then, if it turns out someone disputes the bill, they have photographic record of us staring into the amount.

Or, like my gym, when they slide the card, my picture comes up on their screen. If my face doesn't match the picture, they call the gym goons to come reshape my face.

Surely it's time for a better idea company, an Apple pay or Square or someone to come up with a card or system that has zero fraud and doesn't waste everyone's time with meaningless signatures?