I'm going to say there's at least four factors, all related to bad parenting, not that bad parenting is the only cause. The phone as a babysitter is a big one,

I'm going to say there's at least four factors, all related to bad parenting, not that bad parenting is the only cause. The phone as a babysitter is a big one, but also parents on phones / social media. There's also an atomisation of society (fewer extended family and friends, and institutions like church groups). And parents work longer hours. Kids go home and suck on a digital pacifier so their parents can do the same, and those parents haven't got anything else to do. What chance does the kid have?