Imagine you have a toy that you can trade with your friends. Your friends also have their own toys that they can trade with you. But sometimes, some of your friends don't return your toy on time or don't trade a toy that is worth the same value as yours. This means you might not want to trade with that friend in the future because they haven't been responsible or fair to you.
Similar to trading toys, adults also borrow money from banks or other companies. This could be for buying a house or a car, or even just getting a credit card to buy groceries. The bank or company wants to know if the person they are lending money to is responsible and trustworthy enough to pay the money back on time.
A credit rating is like a grade that shows how responsible and trustworthy a person is with paying back borrowed money. Just like how a good grade in school means you did well on your tests and did your homework on time, a good credit rating means you paid your bills on time and didn't borrow more money than you can afford to pay back. Conversely, a bad credit rating means you might have missed payments or borrowed too much money that you can't pay back.
The companies that lend money look at a person's credit rating before deciding if they want to give them a loan or credit card. If someone has a good credit rating, the company might be more willing to lend them money or offer them better terms, like lower interest rates. However, if the person has a bad credit rating, the company might not lend them money at all or offer them less favorable terms, like higher interest rates.
So, just like with your toys, it's important for adults to be responsible and fair when borrowing and paying back money so they can maintain a good credit rating and have better opportunities for borrowing money in the future.