This is a good explanation.
I would honestly rather have silver coins as opposed to the same amount (in dollars) in fiat currency. Silver can't be printed, so that's another thing that makes it more favorable than fiat coins would be. You can't just inflate the silver supply, it is pretty well set out and there's not a lot you can do to change the amount of silver that exists in the world, contrary to paper money.
Paper money is literally paper, and where does it come from? Trees. Are trees always growing and new trees being planted? Yes. As such, the supply is inflating because more "Trees" are growing, and there's not a lot you can do to stop it, unless you wipe out all the trees. Silver cannot be grown (To my knowledge) like trees. Thus, silver remains favorable in my eyes.
Yea, now that the discussion has come to that, I would personally much prefer metal coins for all those reason. Although I would say that in modern times its not even trees anymore, governments now creates money electronically instead of even bothering to print it.
Of course, governments know that and come down hard on people who try to do it.
Shutting them down violently and seizing all their assets. there have been a couple of cases in the past 15 years where the US shut down such companies. they argued that people could mistake the silver and gold coins for dollars and as such they are guilty of making counterfeit money. Based on that they shut them down and confiscated everything