Singer Hilary Duff has ruled out marriage in the near future, insisting she's far too young to exchange vows. The 20-year-old is currently serious about U.S. ice-hockey star Mike Comrie, but isn't prepared to settle down. She says, "I'm definitely not ready to get married. "I think a reason that people in this business get married young is that they feel like everything comes to them sooner in life. "It's normal to be like, 'OK, what's next?'"