Why experts warn against smartphones before age 13
Clinical psychologist Dr. Sheryl Ziegler, author of "The Crucial Years," joins "CBS Mornings Plus" to explain the dangers of giving kids smartphones too early and share advice for parents.
Clinical psychologist Dr. Sheryl Ziegler, author of "The Crucial Years," joins "CBS Mornings Plus" to explain the dangers of giving kids smartphones too early and share advice for parents.
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