I was in a bank and this teenager was there with his parents. One of the bank ladies was pushing him to get a credit card or debit card (ever since the bank became Wells Fargo they have been pushing credit cards hard). He said he just uses cash. She talked about how he could lose his cash or it could get stolen and if it was a credit card the bank would be able to get his money back if it was stolen.
Pretty sad really...like tobacco sales marketing towards kids.
I have been conscious of teaching the "principal" of saving or deferred consumption as opposed to saving.
3rd graders if introduced to money, see $10 as $10, (the concept of inflation is complicated) earning interest is viewed as getting money for nothing, and implies success. While maintaining value relative to inflation is what makes for an effective saver. - Ironically I don't know how to do that in the current economic climate.
Teaching the kids the implications of going into debt and paying interest I think is a valuable start.
Debt was a simple lesson for me. From a young age, I was taught:
1. debt is bad (being in the minus/red... or below $0)
2. if you can't afford something, don't buy it
Those are two very simple lessons that can be taught. Even if a kid does not understand what it means, get them to remember it and they will be set for life.
A simple lesson in interest: I remember seeing an example on a childrens TV show that taught pre-schoolers about numbers. The two scenarios they had were to gain more sweets. This was a game between two children.
Child 1. They told him that he could take 1 sweet and for each turn take 10 sweets more then the last turn. On his second go he would have 10+1 sweets, on his third, 20+11, on his fourth, 30+31
Child 2. They told her that she could take 1 sweet and for each turn, take twice the number of sweets as her last go. Then on her next turn take 2 sweets, next turn take 4, then take 8, then take 16.
The rest of the children were then asked which child would end up with more sweets if they took one go at a time at taking sweets.
Child 1, looks like he's benefiting more, however Child 2 will ultimately end up with more sweets.
Lesson 1: Child 1 will be able to reap the benefits of being smart and saving.
Lesson 2: Child 2 will show the benefits of what it is like to understand 200% interest and compounding at the same time.