When someone is injured through fault of another in a cashless society, and suffers a life-long handicap due to the injury, how will compensation be awarded? Just say sorry? "Oh I'm sorry about your legs, my bad. I didn't mean to bump into you and cause you to fall down that flight of stairs. Well, you take care now. I'm going to play some golf." If someone is awarded damages, what form would it take and who makes the decision?
Suppose awarded damages are not enough and the injured seeks retribution. Would that necessitate a need for a criminal justice system? What form would the punishment take? Obviously, taking things away only causes scarcity and more crime, so how would punishment be possible? If punishment is not possible, then retribution is sanctioned.
What about marriage, divorce, infidelity and domestic violence resulting from that? What punishment? Who decides? What about divorce where kids are involved. Who decides who gets custody and making decisions about raising the kids? What if the other party is angry at the decision and seeks retribution?
What about pranksters who cause damages? Boys will be boys!
Domestic violence is a leading crime and most of the time it results from perceived disrespect or insult rather than scarcity.