Probably untrue.  My main use case for my smartphone is watching videos while I eat lunch; audio over headphones is a requirement.  Floppy discs were only used with computers.  3.5mm cables are presently the ubiquitous way for getting audio out of &#x27;cheaper&#x27; electronics to an adapter for more professional audio situations (typically XLR).<p>There is also a &#x2F;wide&#x2F; array of hardware from other ecosystems (headphones in this case) which interact quite well with that port as they have become standards for interoperability and are dirt cheep.<p>Wired, for all of it&#x27;s potential annoyances, also has the benefit of being direct, isolated, and low power (lower than radio anyway) as well as allowing the whole system to operate off of one supply instead of also needing to worry about charging headphones.<p>The best solution I see is standardizing on a power&#x2F;data &#x27;hub&#x27; that is a generic USB device.  It would have the audio line and optionally HDMI&#x2F;DVI ports that are expected while allowing for device recharging.  However even that is seriously annoying.