Note the Date - 1906. That was before the Fed Act - 1913.
P.S. Motla68;
The solution you propose is by and large impracticable. Redeeming lawful money by demand is much easier for fixing a flat or putting food in your mouth. There was a promoter of the same approach you propose on SJC named Bean. He even told us that he never uses money at all, only specie but he never really would tell us how to buy a burrito at Taco Bell without being taken to the cleaners.