One of the ways banks make revenue is by lending people money through different arrangements including through a credit card.

https://www.youtube.com/watch?v=coMw8r8V5MQ

People who borrow too much will have a lot to worry about when it is time to pay back the bank.

https://www.youtube.com/watch?v=U7agmx1na_w

Throughout one’s life you will definitely need to borrow money for big things like education and a home.

So if you start borrowing for littler things, you will have bigger repayment bills when you start borrowing for education or your house.

When you finish paying back your loan, what you have left are the big things you used your loan to purchase. This couple talks about becoming debt free after borrowing for their home.