It is weird how Germany is still so cash based. Even younger kids will count out coins at grocery stories, and they're convinced it's faster than using a card (their cards do take a while). Most of their cities still use paper train tickets! Many cities are skipping the tap/card systems all together and going straight to phone apps (which I don't really like. My card will always validate if a ticket inspector comes on the train. My phone can run out of battery).