The first thing we should all realize is that GOLD and SILVER were the staple trading commodity for the last few thousand years, not the Dollar, not the UK Pound Sterling, not the French/Swiss Franc not the German Deutschmark.
Gold and silver.
Gold coins have been dug up in Mesopotamia and Egypt, as old as 3000 BC and even older.
Paper money is a very recent invention, and the tendency is for many nations to standardise their currencies into "currency blocs" to help internal trade.
The US $ exixts not because George Washington wanted it, but because it was the one common trading commodity within the newly established United States, for internal trade.
Similarly, the French Franc and the British Pound were extremely successful not because of stable governments bit because of the huge African/ Asian Empires which used that same currency for trade.
Word has it that the UN are studying a new, global currency called the...
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United Future World Currency (UFWC, pronounced ... well, you know
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It was designed by Italian engraver Sandro Sassoli of the Italian Mint (the Italian Mint actually mints for half the African and Asian Nations, it is one of the most active mints in the world)
The point is, ever since Pres. reagan unlinked the US $ from the value of gold, all nations have followed suit, and the currencies are now valued by estimates of industrial power and government stability, rather than gold and silver reserves... which means one can lie and claim "my plant is bigger than your plant" and print money to Kingdom come, and then when the cards are down you really see who has ooomph and who was bluffing.
It wpould be more than sufficient to link currencies to gold, without actually having to go any further.