Someone posted a link from 2013, so some of this info is outdated. Some of it might be different approaches in different cultures and countries. And people just love being right, don't they, and they love getting angry when it's for the 'protection of children'. Especially when they think the opponent is a 'dirty hippie' following any kind of non-mainstream woo-woo ideas. I'm just sorry for their kids. A baby is a small mammal and their sense of safety directly derives from closeness with the caretaker. Babies who feel safe are more likely to turn into adults who feel safe.