Engineering360: "Study: Smartphones do not affect how much time families spend together"

Quantity of the time is not as important as the quality of that time. Nothing screams your presence means nothing to me like burying your face in a damn screen. I may be old school, but I find the practice incredibly rude.

"... time and 27% of the time was inactivity time."

I am assuming this was just an interesting typo, otherwise it argues against the article's premise.