Anything related to psychological or emotional are never that black and white. Every thing mentioned in the article could on a spectrum. Teachers and classmates could range from supportive to downright mean and it could change across every school/class/individual basis. The atmosphere at home matters a lot too. So establishing a base cultural norm is not a bad thing. Issues like this are already difficult to solve at a group level so as a society these norms will help us establish a base expectations in terms of norms and that would make it a little better to theorize.