My daughter has a piggy bank and occasionally collects coins and adds them to her lot. Sometimes, she spills out the contents and enjoys putting each coin back in the bank through the slot at the top one at a time. But I wouldn't say she's good with money.Aside from the shape and color, she can't differentiate between the pennies, nickels, dimes and quarters. She doesn't know how many pennies are in a dollar, or even what a quarter is worth. She's only three. Still, the other day she received an application for an American Express card in the mail.