I was in middle school when the iPhone first became popular among teens. Within a couple of months, everything changed. Kids talked a lot less on the bus, at lunch, etc. If you didn't have an iPhone, your friends probably did, so same issue. It felt a whole lot worse and stayed that way. I ended up becoming closer with my few friends who didn't have phones and further from my old best friends, just because of who was more willing to hang out together.