Can they really print as much as they want? Then you'll wonder why the federal government of the nation have to borrow money from the World bank and international organisations.
They don't just print money as they like but, have a monetary policy to regulate on how paper money and coins are been printed or mint respectively and put into circulation to balance up productivity and the economy.

Saying that money isn't scared is because you ain't in my nation at the time and I can understand your speaking out of perspective but it's cool. Though, it's a hard time for people in Nigeria following the rebranding of naira notes.