Well you got me ... I do pick "harder to refute" examples when I see folks make blanket statements like "3.5mm is going away ... which is generally code for forever".
I have a set of nice Beats headphones and another set of Beats earbuds. I love that I can plug them into my iPhone, iPad, Dell laptop, desktop, in-seat audio on airline flights (I fly a lot so that example matters to me). I never have to worry about adapters and the 3.5mm standard "just works" to steal a slogan from Apple. The 3.5mm example is convenient, reliable, and consistent among disparate systems. I hate that I will have to deal with adapters and maybe I won't be able to listen to music (via headphone/earbud) and charge my iPhone at the same time, that is even more of a nuisance. Then taking the 3.5mm jack and giving me a second speaker for some alleged "stereo" sound from speakers an inch apart, is yet another slap in the face to me.
I also loath the arguments of alleged quality improvement, the whole Lighting digital is better than 3.5mm analog is completely absurd and simply parroted by people who don't know what they are talking about. I admit I was one of those "digital parrots" until I read this detailed discussion on MacRumors.
https://www.macrumors.com/2016/06/08/iphone-7-audiophile-lightning-headphones/
What most of those folks don't understand is that the source material you are listening to is digitally encoded, there is a DAC/AMP in the iPhone that converts that digital signal to analog and that signal travels along a wire to your speakers, with the wire connecting to your iPhone via a 3.5mm connector. Even if you have Lightning connected headphones, yes it's digital signal from the iPhone to the DAC/AMP in the headphones, you simply move the DAC/AMP function from the iPhone to the headphones, BUT from your Lightening connected headphones internal DAC/AMP onward, the signal still travels as AN ANALOG SIGNAL along a wire to your speakers. The whole quality argument to me is the most ludicrous and filled with so much misinformation it's sad.