How TfL’s simple pop-up message led to a significant drop in paper ticket sales

Transport for London (TfL) has seen a drop in the sale of paper tickets after it made a small change to the ticket machines in London Underground stations.
The change took place last September during a routine fares update to the ticket machines, and the sales of paper tickets dropped overnight by around a third compared to how many were being sold before.
However, that was entirely intentional.The change was deliberate, intended to reduce the sale of paper tickets by encouraging people to use c