I agree that we should be concerned about DRM. I think that the ship has already sailed on that, though. Most people that I know use a streaming service for th

I agree that we should be concerned about DRM. I think that the ship has already sailed on that, though. Most people that I know use a streaming service for their music. Spotify, Apple Music, or Google Play Music mostly. They already don't own the music they're listening to, and even when they download it to their phone it's encrypted and can't be easily transferred anywhere else. The experience is convenient and cheap enough that they just don't care. They don't even need to get rid of the headphone jack to only allow specific headphones. Nothing was stopping Apple from only allowing people who own Beats with a lightning cable from listening to Apple music, even when the phones had a headphone jack. I imagine a similar scheme could be cooked up using the microphone input to the phone. Have the headphones transfer some kind of key through that to the phone, and only allow certain analog headphones to listen to music. Sure, it's probably easier to crack than USB C/lightning based DRM but still possible.