While I can see the point author is making, it’s weird how it is pinpointed to “headphone use”. I’ve been listening to music on the go for almost 30 years, starting with cassette players, then CD players, then mp3/ipods. Taking a bus/metro and listening to some new album or old favorite was very formative experience as a teen music lover. I have a sense that the important moment with regards to the issues described in the article was mobile internet becoming widely available and development of easy/good wireless headphones (AirPods). Social media and algorithmic streaming is a big part of this too, not just “headphones”.