Every day my inbox fills with emails from public relations firms, angling for a plug for an author’s book or a new study on children. I delete most of them as quickly as they appear, but I nearly always read the ones on youth and mental health. Suffice it to say the findings are not good. I often ponder over them, as we have a whole string of grandchildren (none of whom yet have a cell phone) poised to enter the teen years. There is a corollary between the rise in popularity of screens among teens and feelings of isolation, loneliness, depression and the unspeakable. The Digital Age has been a…