Try buying oil, gold, copper, coffee etc in large quantities in anything apart from US $.NT said:Is US considering converting to euros? Is EU converting to $? Neither is or has any interest in doing so.
Big business works in US$ and this has a knock on pressure onto smaller companies. When I buy a few thousand pounds of electronics from Taiwan, the price is in US$.
I personally don't think there will ever be a global currency before there is a global political union which I can't see happening for a while yet . If you study economics you will find that you can't have two equally sized countries both issuing the same currency without major problems. It only works in the EU because the central bank has control of the issuing of money.
Also, the US is finally converting over to metric in engineering. NASA announced recently that they were changing over and I recon I get around 50% of Americans sending me emails in metric now when it used to be around 100% imperial.
Also, my dad's old ruler is only in inches, most now come with both units but many (including the freebie I was given) are only in metric. This percentage will only increase and once it is no longer possible to buy measuring equipment in imperial, its use will die out too.