My theory: I think its daycare. Our generation went through a lot of it at a very young age. I've read a study that showed that kids who spend more than 12h a week at daycare experience the same symptoms has kids who are orphans. Imagine a 18 months old baby getting in a daycare having to compete with a bunch of other toddlers who compete for stranger attention. Here we are 20 years later with kids who can only throw a tantrum in order to get people's attention and who are emotional wreck themselves.