<prompt> Human: I know, I probably should have looked at my credit report long before now, but contrary to many posts I see on this sub, I think this actually may have benefited me.As the title states, I finally had a look at my credit history on Experian, and found a 13k credit card opened in 2003 by my Dad. I never got any personal credit cards until I was 17, so that is the oldest card on my history by a couple years. He has paid it in full every month since opening it. My credit score is 800, and I feel that may have a large part to do with it. I have about 20k in other credit cardsloans that I also pay monthly. Now that I am 30, what should I do? Do I leave it open? Ask to be removed? He says he in unaware of me being listed on the account, but verified it is his. Thanks for any advice!EDIT: Thank you all for the help! I am seeing my father tonight and will definitely be buying him a beer. Cheers!  <response>: He has paid it in full every month since opening it.Oh, it was intentional.My credit score is 800It was very intentional.Your dad did you a solid with a great start in your financial life. Give him a hug.Just dont squander this opportunity. Learn from it and leverage it. 