There may be good reasons for Apple wanting to ditch the 3.5mm socket (I'm not convinced, but I know many of you are

), but please don't pretend that the 3.5mm jack/socket's impending obsolescence is one of them.
The reality is, every year Apple squeezes more and more tech and features into the phone, all of which require more and more battery. At some point miniaturization and processor efficiency are not going to offset the need for real space.
So let's look at this realistically. Apple has four redundant ways to get audio out of the iPhone: 3.5mm, Lightning, Bluetooth, and Wifi. Three of which are standards, one is proprietary. Three are multifunction, one is audio only. Now, let's say you have to choose one to get rid of in order to make room for some "must have" new tech. And let's say for the sake of argument without getting into the merits of each, that you keep the standards, and lose the proprietary Lightning jack. Instead, the 3.5mm jack becomes a multi-function jack like the iPod Shuffle. It offers data transfer and charging though a digital controller, and audio. I'm not sure the iPod Shuffle can charge and be used for audio at the same time, so maybe Apple has to go to a 5 conductor plug adapter for that situation, as they must to maintain universal compatibility with everyone else. Now you don't reclaim as much room as keeping Lightning instead, especially if you have to make it bigger so you can charge and listen at the same time, but you keep everybody happy by keeping the universal audio standard.
So is that a better solution for everyone who are insisting the 3.5mm jack shouldn't be removed? I'm pretty sure the data transfer is going to be much slower, but there's always wifi right? And Apple is also pushing for the cloud, especially given the relatively small size of typical iPhone storage 16-64GB. Any device that can be used over Lightning should also be able to be adapted to a 4 or 5 conductor pins too, right (does anything actually use all 9)? Am I missing anything here?
As for the 3.5mm connectors impending obsolescence, well all good things come to an end. But as far as mobile devices are concerned, wireless is an improvement over wired. Unless you just like plugging into an Ethernet Jack everytime you need to access the Internet. So the future of mobile audio is wireless. The time to get rid of the 3.5mm Jack on mobile phones is debatable, but the result isn't.
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Maybe wireless will be the next logical step in a few years; nobody can say for sure. But as of 2016, it is still vastly inferior to wired, and given what we've seen of apple the last few years, there is no way they're sitting on some revolutionary wireless technology.
So is Ethernet to wifi. Yet I no longer have the choice to use it without an adapter on my MacBook Pro, and have never had the option on an iPod, iPhone or iPad.
Apple apparently has a need to remove the Jack to reclaim the space for feature improvements, and short of a proposition as I proposed above, it seems to be the most logical way to achieve those goals. The reality is for many, BT has reached a point where it is good enough to replace it. No it's not going to make everybody happy, but for those for whom BT doesn't quite cut it, there's an adapter. And improvements will continue to be made, likely at an accelerated pace now that there is increased demand and competition to drive R&D investments. This wouldn't be the first time Apple dropped a universal standard for a new one which wasn't quite ready for Prime Time, and customers were left struggling for a few years if they wanted to stay on the leading edge of technology.