Daniel Radcliffe doesn't want to wait when it comes to starting a family.

"I'd like to get started on it before my thirties," the 23-year-old actor told Time Out: London magazine (as excerpted by People mag). "I like the idea of being a youngish parent so I've got energy to play football even though they'll be better than me by the time they're four," he quipped.

Although the former "Harry Potter" star admits he doesn't know "when or who" he'll have a baby with, he said he "definitely" wants children and plans on being a tough parent who "pushes their kids into things," but "not the film industry."

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"I will have to find a very tall wife if they're going to be good at sports," the 5-foot-5 star jokes of his future children. "You could be my size a

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