pseydtonne makes a good point. Someone texting is engaged in an activity. Of course, observers are free to make whatever interpretations they like about the emotional states of strangers. They just have to be careful not to grow too fond of their made-up stories. Psychological: Instead of shame, people seem to have less shame and be completely oblivious to people listening to private conversations or all sorts.I think there is likely to be very real physical and psychological ramifications to our current habits.
Physical Ramifications: For example, the guy in your picture is about to go flying into the street. As someone that is on their phone often, this worried me.
Be aware of your surroundings and practice good posture whenever you can.