If you believe in privacy, then going cashless potentially means that a number of organisations, including your bank, will know every item you purchase and your lifestyle. Imagine a dystopia future (some would say we're there already) where every donut or pint of beer you purchase is shared with your health care insurance provider or the NHS and your lifestyle choices then effect the treatments you receive (extreme I know But who knew how much data facebook for example shared about us) Or if you regularly buy certain products, which are tracked by using your card rather than cash, how much more targeting marketing companies can aim at you. Cash really does allow you to have the illusion of controlling your data.