My bank freezed my access to my debit card and online bank recently, without a reason. They just sent me a message that I should visit the branch in person. Not going to happen. Fortunately I could open a new bank account online and had some spare cash too.
For the first time I realized that I'm a slave to my bank. They can just freeze my money just like that.
In a fully cashless system you'd be a complete slave to the system.