Governments have already begun to crack down on the use of cash. Examples: Italy http://www.businessweek.com/magazine/italys-cap-on-cash-payments-12082011.htm

Governments have already begun to crack down on the use of cash. Examples: Italy http://www.businessweek.com/magazine/italys-cap-on-cash-payments-12082011.html http://www.businessweek.com/magazine/italys-cap-on-cash-paym... Spain http://www.bloomberg.com/news/2012-04-11/spain-to-limit-cash-transactions-to-fight-tax-fraud-correct-.html http://www.bloomberg.com/news/2012-04-11/spain-to-limit-cash... USA (Louisiana) http://www.klfy.com/story/15717759/second-hand-dealer-law http://www.klfy.com/story/15717759/second-hand-dealer-law There are more examples beyond this, but there may indeed be a trend emerging. You also risk having cash stolen by border agents when crossing international borders. Many countries expect you to declare whether or not you are carrying more than a certain amount.