Thanks, that's great news. My last visit was in May 2017. And for 10 years between 2007-2017 I pretty much carried only cash in Berlin.

The cardless life was very strange in the beginning, but I learnt to love the absolute sense of freedom and privacy the lack of any digital records of my day-to-day life provided me.

I even stopped carrying my smartphone when I didn't need it. It was like back to 1990s.