Last week in Sweden I saw DCC on most terminals. The SEK option was greyed out and on the left, the EUR in bright green on the right. It took a while for me to find the right spot to press to stay in local currency

My wife also asked me what this SEK/EUR thing was after she came back from shopping alone. She knew not to accept the EUR option and struggled to push the right buttons. It seems she did ask the cashiers who all insisted the end result was the same and that she should just accept EUR. She didn't though. ^