In his recent advisory on parents' mental health, the U.S. surgeon general, Dr. Vivek M. Murthy, said out loud what many parents might have only furtively admitted: Parenting today is too hard and stressful. Of course, there have always been concerns about families' well-being. And while some of today's parents' fears are newer - cellphones, school shootings, fentanyl - parents have always worried about their children. Sign up for The Morning newsletter from the New York Times So why has parenta
