One thing I've noticed is that people often don't hold the door open anymore when you're following them out of a building or room, because they're looking at th

One thing I've noticed is that people often don't hold the door open anymore when you're following them out of a building or room, because they're looking at their phone. I thought the article would be focused on these sorts of things, but it seemed to be more of an advice column. Not what I was expecting.