Personal credit is attached to an individual's Social Security Number (SSN). Credit usage determines credit score for that number, and does not have to start when that number is so many years old. That is, you can start your kids on the path to good credit as soon as they get their SSN. Businesses, like children, start out with a clean credit history. As the business owner or parent, you can do the planning that the business and kid isn't ready to do yet, making the future easier for them. As you are financially and emotionally invested in your kid's future, teaching them how to have good credit also makes the future easier on you.