The removal of the penny is the first step towards a fully cashless society, with nickels likely to follow due to their high production cost.
"getting rid of the penny might just be the government's first small step in getting rid of cash entirely. Think about it. The nickel already costs even more money to produce than the penny. About 14 cents per coin, which is almost three times its face value. And if we're getting rid of pennies because they lose money, it makes sense that nickels will eventually follow."