I`d have to say this idea while it works inRL do to a few reasons,wouldn`t do a single thing for Cantr.People will still want the useful materials
and rarity isnt an issue even if you only dig 5 grams of gold a day as an example(I don`t know havent seen it yet) It may seem rare but t isn`t
It`s always right there to always be tapped.Basically the only rarity in this game is meat.I`ve read once they go exstinct in an area they stay that way unless,more migrate.
Minting coins to stop grams from decaying or flying away is not an issue.
Also,There are a few oddball theories,I like on why Gold has always been an important commodity in RL,won`t go into that now.
Anways....The problem is in RL you can recycle these materials(melt them down) and get your base resource back,if you need a transistor or ring.
Once decay of things happens.Coins may be needed to transport these materials,much as illegal mints popped up in the western untied states during the various gold rushes,decay for coins and cantrian made objects,obviously would have much less decay,than most base resources (wood rots,iron rust etc.) But in conclusion theres no point or use for them.
I personally believe coins and paper money were made to for taxation purposes,You can`t in RL collect some of what everybody manufactures /grows.In cantr with every resource divisible to the gram,This is not an issue.
Basically it comes down to a couple programs that are the foundation of this game and they make certain things like coin presses,A total and complete waste of time,and as far as I can tell the standardized currency is steel.And will continue to be because much like the real world,Might makes right.money makes might here.Steel makes might in cantr.
Case closed.