Is this a age difference occurence?

I worked with a guy that had three boys, one that was the oldest and then the other two were twins. He made a deal with all three of them that my buddy John would buy them each a car if they would work and pay for the gas and insurance. Can you believe all three of them said Nah, they would just ride around with there friends! One of the three turned out ok, the other two ain't worth a bullet!

tell John he can buy me car anyday