As long as they are not replacing a fiat currency with another fiat currency then the idea has much merit.
A Gold/Silver standard makes total sense!
More states better start doing this, because Zimbabwe Ben and the Fed are on a path to destroying the US dollar (drumroll: enter a new WORLD currency)
By the way - South Carolina is not alone:
A bill in Georgia would require all debts to the state be paid in pre-1965 gold and silver coins. The Virginia proposal would let the state print its own money. Meanwhile, one politician in Utah wants to cut out the middleman entirely and allow the state's residents to run their very own mints.
END THE FED!