Why would an employee tracking device be necessary to make transactions? It is just people without a cash position performing mental gymnastics in an attempt to justify it, by trying to bring it down to the level of electronic payment methods they convince themselves that, in a similar event, they would be no better off with cash, when in fact they almost certainly would. A merchant who refuses cash on account of a disabled cash register, under these circumstances, is not a serious one, since to do so would be to refuse all business. Those merchants who are so encumbered by scale and bureaucracy that they would be completely incapacitated should be circumvented.