I do not object to Apple's removal of the headphone jack from the iPhone. There are good reasons to do so. But using the lightning port could create chaos, as follows: Apple removes headphone jack from iPhone and uses lightning port for audio (already done). Other phone makers remove headphone jack and use USB-C port for both charging and audio. Apple removes headphone jack from MacBook Pro, and uses USB-C port (I can't see them adding a lightning port to a Mac for audio). For a while, there are three standards: traditional jack, lightning, and USB-C for audio, creating headaches for consumers and manufacturers. Chaos! Industry settles on USB-C, and iPhone marginalized. Around the time of the iPhone 12, Apple gives in and switches to USB-C. What a mess this could turn out to be! P.S. Remember Firewire?