"Travelling frequently in Europe, I’ve had the chance to use two approaches to the underground/metro/subway, the Paris Metro and the U-bahn in various German c

"Travelling frequently in Europe, I’ve had the chance to use two approaches to the underground/metro/subway, the Paris Metro and the U-bahn in various German cities." The author failed to understand the actual cultural issue driving the two approaches: In Germany you don't need a gate to have people pay the ticket, most people will do it anyway. In Paris, most people won't pay and just ride for free, and tragedy of the commons ensues. So by his own argument, DRM is a product of the culture of a people.