It's always been that way. The notion that currency is backed by something concrete like gold is an illusion, one that some people cling to these days.
Even if it were true, inflation makes the whole issue moot. Money is only worth what it will buy, so it is at the mercy of prices.
Finally money depends on people's collective acceptance of it. No point in holding gold if people lose confidence in gold, for instance if people start producing convincing fakes. How does the average person verify gold? It almost always goes back to trusting some central authority.
Even if it were true, inflation makes the whole issue moot. Money is only worth what it will buy, so it is at the mercy of prices.
Finally money depends on people's collective acceptance of it. No point in holding gold if people lose confidence in gold, for instance if people start producing convincing fakes. How does the average person verify gold? It almost always goes back to trusting some central authority.