Good luck to all the parents out there who try to get their 13-year-old to hold their hand for safety the next time you cross a street. I'm sure that'll go over great.

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According to a new study out of the University of Iowa, your kid shouldn't cross the street alone until they're FOURTEEN. That should be sweet, sweet methadone for helicopter parents.

The researchers say until they get that old, they don't QUITE have the motor skills or visual judgment skills to cross a street perfectly safely. Yeah, even 12- and 13-year-olds can have a little bit of trouble judging car speeds.

Read more here.

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