If we're talking robbery rather than carding, cards can be blocked. If people use them in physical stores then they're filmed. They also need physical access to them and you in the first place.

With crypto none of that is necessary. It does make nefarious and anonymous demands much easier.

You can be tootling along in your self driving car and then suddenly receive an email threatening to chuck you off the next bridge unless you cough up.

It's rather strange how much more effort is given to physical crime when the online variety must be on its way to far outgrossing it these days.