There is a host of reasons why we should adopt a “cashless” society:
1-the cost of printing bills and stamping coins (in 2008 taxpayers paid $848 million to print hundreds of billions of dollars worth of bills, two thirds of that went to minting coins that most of us find is a nuisance to handle.)

2-more than 14,823 tons of zinc, 23,879 tons of copper, and 2,514 tons of nickel went into making coins last year.

3-cash is germ-smeared, bulky, carbon-intensive and expensive.

Two years ago, card-based payments exceeded paper-based ones – cash, checks, food stamps – for the first time.

The most efficient method of commerce would be to use the cell phone as a point-of-sale terminal which would lend itself to bartering. Imagine paying for a beer with frequent flier miles.

Killing currency wouldn’t be a trauma, it’s be euthanasia.