. . . You're envisioning problems that would not exist.
No, not really.
Of course I can't speak for everybody, but I
don't know of any stores near me that would
accept precious metals or stones as payment
for any food or merchandise.
The local grocery and hardware stores don't
have precision scales, or cashiers qualified
to judge the quality and purity of precious
metals. Every scale that I know of used for
business purposes must be certified by an
inspector of the government, so bringing
your own with you would definitely not be
an option. Bureau of Weights and Measures IIRC.
Maybe 4 or 5 decades from now if the world
still exists.
Not trying to instigate any arguments.
Just looking for a non-emotional answer
to a sincere question.
And there's still no answer