This was visible when using credit cards in stores, too. 1990s: your signature needs to match exactly so we know it's really you! 2000s: you must enter a PIN

This was visible when using credit cards in stores, too. 1990s: your signature needs to match exactly so we know it's really you! 2000s: you must enter a PIN that hopefully only you know? 2010s: fuck it just tap the card near the reader