In times gone by, when you suddenly realized you were missing something—that you were effectively naked—the thing you were likely missing was your wallet. No longer.
“People can go for a whole day without their wallet and not freak out,” says Bill Maurer, an anthropologist at the University of California, Irvine. “But if they’re missing their smartphone, it’s another story.”
Further reading, please open the following link : Phone-y Money