What do you mean moneyless?
Are you communists? Even at hard-core communist countries money exist.  
Where there is even one free market (for anything), there must be a medium of exchange.

Please keep in mind that every deeper move into electronic payment systems,
is "cutting" our privacy. If paper money or "real" coins dissappear,
big brother start to know your all transactions and all about you.

But this "smartphone" generation "share" everything about them and upload everything to the net.
Data grabbers are having never-ending "orgasm" seeing this.
Amen!