Funny, we've had chip-and-pin cards in Canada for ages (which are a bit slower than swipe-and-sign but significantly more secure) and now can also pay with the

Funny, we've had chip-and-pin cards in Canada for ages (which are a bit slower than swipe-and-sign but significantly more secure) and now can also pay with the card using NFC proximity readers (which are very fast). We've never had problems with either. Sounds to me like run-of-the-mill problems with the switch rather than issues with the underlying tech.