Saving Daughter From Idiotic Marriage Idea

My youngest daughter (18) fell for this real schlub of a guy at her job in Pizza Hut. She's going to college and this is her spending money. The guy she fell for is 24 and Pizza Hut is his career. He has no ambition, he's disrespectful, has long hair, tattoo covered body, peirced everywhere (even his damn lip), and doesn't look like he has showered since birth.

My daughter has told me he proposed and they want to get married! She's being an idiot and I am telling her she's making the biggest mistake of her life and she is just letting it go in one ear and out the other.

I know people will agree with me - especially after I let her say her piece as it will just make mine even better - but can somebody please tell her that she's too young (and naive) to go jumping into this. Her mother and I both agree this is the stupidest thing she's ever done.