The US is so weird about its currency. The repeated attempts to get rid of the dollar bill (dollar coins, two-dollar bill, etc.) have all "failed".
I put "failed" in quotes, because all it requires is for the government to do it. Take the one-dollar bills out of circulation, no discussion, done. At this point, take the two-dollar bills (no one will notice) and the penny as well.
I put "failed" in quotes, because all it requires is for the government to do it. Take the one-dollar bills out of circulation, no discussion, done. At this point, take the two-dollar bills (no one will notice) and the penny as well.