Putting aside the drivers-increasingly-can't-see-or-hear-cyclists-or-pedestrians issue, I mostly experience headphoned pedestrians on mixed-use trails that clearly have noise cancelling on. I have the loudest bike bell on the market. I've often come up on a pedestrian, rung my bell multiple times including once almost stopped behind them (because oncoming traffic and the pedestrian's position in the lane prevents passing), and they do. not. hear. it.
cyclingelectric.com/in-depth/cyclists-with-headphones-in-hear-more-than-cars-with-windows-up
