Credit cards allow you to buy goods and services with credit and if you go over the credit limit you’ll be charged an overdraft fee but with debit cards you can connect the money you earn from your job to the card and spin the money on the card but when the money is gone you have to wait till next paycheck to spend more but they will not be an overdraft fee also credit cards can affect your ability to be approved for loans and pay house mortgages if your credit score is bad meaning you don’t have a good history of paying your bills on time it will make it hard for you to apply for car loans in house mortgages