While I still lived at home a few years ago, my parents added me onto one of their credit card accounts and gave me a card with my name on it. Fast forward to moving out and living with my wife; we are looking to rent a house and move out of our apartment. The manager of the property we're looking at asked for a credit report which I gave him, and my score was in the high 700s (in the US btw). I thought that couldn't be right and when I looked at the report, I had 2 years of our apartment rent, then records dating back to 3 years before I was born to the credit card from my parents. Now I know this is great, not like the parents that ruin their kids credit.
I'm not sure what to do about this. Should I roll with it and use the credit, or should I try to have the removed? On one hand this isn't an accurate and if it was looked at closely on any application it'd be seen I am younger than the account. I don't know what that would then mean. On the other, the person we are looking to rent from said with the good credit, we may be able to talk with his realtor friend to get a great deal on a house and have payments on that instead of rent payments.
Also, if we were to miss a payment for some reason, would this effect just my credit or would it somehow effect my parents? We haven't missed anything yet, but wanted to be sure in case we did.
Any advice? Is this something I can, or should fix?