Riddle said her granddaughter enjoyed singing and playing outdoors, and she loved her brother.

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Normally, those are the two things that make playing outdoors a little bit trickier.

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The cave, certainly, is an occasion for easy irony: the man who has perhaps done more than any other person to entice generations of children to spend their playtime indoors, in front of a video screen, happened to develop his peculiar talent while playing outdoors, at whatever amusements or mischief he could muster.

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In her free time, Heather enjoys travel, the outdoors, playing basketball and is writing a detective fiction book about organized crime.

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Children quickly get bored with one type of media, research suggests, and tend to combine screen time with playing with toys and running around in circles outdoors.

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