Interesting review of the customer view while trying to use the Barclaycard OnePulse card.  Dave makes the point that the merchant benefits are clear, but the benefit to the consumer at the point of purchase is confusing, and in this case slower than cash.

Digital Money Forum: Slow penetration

When I waved my card at the reader, nothing happened. The woman serving me asked if I really wanted to use the “terminal”. I said yes. She said: “It will be an extra five pence”.

Whether it’s the lack of suitable terminals for the kinds of merchants,
miscommunication between acquirers and merchants about benefits, simple
unfamiliarity or whatever, I hope someone on the business side has a
handle on this.