Once you turn 18, you should regularly check your credit report . . .

For errors or signs of identity fraud
To keep an eye on your credit score
To make a plan for improving your credit score
Only if you have a credit card

These are all important reasons to check your credit report once you turn 18, regardless of whether or not you have a credit card. It's important to monitor your credit report to ensure that all the information is accurate and to catch any signs of identity theft early on. Keeping an eye on your credit score can also help you make informed decisions about your financial health and work towards improving it over time. So, it's always a good idea to regularly check your credit report, even if you don't have a credit card.