Money!!!

My son, talking about his daughter - "I was getting money out of the ATM.  As the money came out, the funniest thing was heard..."

Annie - "Money!!! It's your lucky day, Dad!"
 
My son's reply - "Either she's seen too much of Las Vegas, or I have to teach her about ATMs... for now, though, it was cute..."

Annie is almost five.  She is very aware of the value of money but not the concept of ATM machines or credit cards or checks.   That's normal for her age.  It takes a while for developing brains to deal with abstract concepts.  Heck, even some adults don't seem to get the idea that you shouldn't write a check for something if you don't have the money in the bank.  

Annie's learning quickly and it won't be long before she's asking her dad for his credit card.  :)