No and no.
One of the big reasons that the US moved towards central banking and eventually paper currency is stability.
Any finite commodity is subject to rapid swings when supplies are constrained. In recent memory, copper, silver and electricity are all commodities whose price went crazy when either demand got wacky high, or supplies got very limited.
In history, the economy was traditionally very vulnerable to economic shock in the fall, because when agriculture dominated the economies small banks were starving for capital as they waited for the harvest (and payment of crop loans). Any hiccup would rapidly cascade through the system and lead to bank runs.
With the fiat system, capital is made available to smooth the bumps. Instead of a depression and widespread bank failures in 2008, the central banks flooded the markets with capital and blunted the impact of the crisis and avoided panic.