Ubiquitous music bothers me, too. I tend to work in coffeeshops just to get out of the house, and I'm not aware of a single one without music. I never enjoy the music. I just endure it, or I defend myself with louder music of my own choosing in my earbuds. It's definitely stealing some fraction of my mental power. I worry that it's an indication that many people find silence uncomfortable, that they get anxious without some kind of distraction. Sometimes I wonder if it's like the smoke beekeepers use with bees.