Do you guys ever notice how little kids get taught about coins and paper money? For example, I was looking at a money learning sheet and the only coins and paper money it had on it was a dime, quarter, and nickel. And for the paper money, it had a $1,$5, and a $20. I was thinking where are the $2 bill the penny, the half dollar! back when I was in elementary school they taught us EVERY US currency that was circulating! Why do they not teach the younger people that any more?