Self-reflection can be good, especially if that reflection is on the screen of your iPhone.

A Pew Research Center study on screen time and device distraction show more than 50 percent of all teenagers admit they spend too much time on their screens. The parents who say they fear for their children also admit they have device distraction problems of their own.

Parents, worried their iPhone-carrying kids are addicted to their screens, likely rejoiced when iOS 12 was announced with a new feature that monitors screen time and allows users to set time limits.

Childless yet eager to test the feature, New York Times tech reporter Brian X. Chen borrowed a kid from an editor for a near-month-long test run of Screen Time – and it worked.