I think this is the longest post I've ever seen you make.Pretty interesting, surely the government would be creating a good amount of jobs if they abolished the paper dollar and at the same time they would be seriously harming businesses in the short term.
Bill changers, cash registers, vending machines would most likely need to be modified and taking the weekend deposit to the bank on Monday may require two people because of the added weight. There are lots of side effects to this IMO that are worth a closer look.
So much for idea that government doesn't create jobs(I hear so often).
Not saying it's right or wrong, just saying.
What's really neat about the changing/modifying currency is that people tend to save some for collecting, like with the statehood quarter or the Lincoln cent a lot of people take a few of each and put them aside, I image the dollar changeover would be similar and many people would take bills out of circulation for keepsakes. Also there is nothing like giving the clerk a five dollar bill at the store and getting 3 or 4 new shiny(new)dollar coins as change and then socking them away to never see the light of day again in the hopes that someday they would be worth something.
If I take four new dollar coins I got for change at the store and remove them from circulation and also sock a few old paper dollars away forever I wonder who benefits from that kind of activity? The fed maybe ?