15 McKinney Vento and the Unaccompanied Youth McKinney Vento defines Unaccompanied youth as youth who do not live in the physical custody of their biological parents/legal guardiansMcKinney Vento defines Unaccompanied youth as youth who do not live in the physical custody of their biological parents/legal guardians Youth who do not reside in the physical custody of their parents live wherever they can find shelter (i.e.
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