[neilalexander]

> Americans don't want to punch in a PIN. We have more cards per capita and are habituated to the convenience of a swipe.

When Chip + PIN was introduced in the UK in 2003, people were widely concerned about the potential for inconvenience (entering a PIN takes longer than a swipe, the transaction might take longer to be processed, you might forget the PIN altogether).

In reality, fear outweighed the reality, the world carried on as usual and people adapted very quickly. It's now just totally normal here to enter a PIN and the average British person would feel far more inconvenienced if asked to sign for a transaction instead (which has become such a rare event here that the average person would be completely taken by surprise if asked to do so).