That is a difference, I think a large portion of the adult population hasn't considered introspection on themselves and are subject to the same trends. I was able to recognize it because I had read about modern children's behavior in classroom, and I was able to recalibrate because I was familiar with what my level of concentration should be and had been. But that's not a consolation if everyone, perhaps including the teacher I responded to, would find themselves "infected" the same way if they were told to be the student in the classroom. I bet a more holistic solution would be found if people recognized they are distracted too, instead of only looking at the easier target: kids forced to be in that setting.