(I think you were talking about him because I'm the one on both sides...)
And I do drive my mommie's accord...sometimes...In fact, my mom has one, my bro has one, my dad has one, and I have one. We all have 6th gen ex v6's.
There's nothing wrong with driving your parents' cars. I enjoyed driving the Navigator to school and watching everyone drool. (Back when it just came out and nobody had one and the people at the gas station say "what the hell is that thing?")