I'm just sick of all of this "I know you think that" condescension. I'm not even telling people "The massive sucking sound you're hearing is a fad, you just haven't noticed yet.", I'm not telling people that wireless headphones aren't great sometimes.
I'm just saying: keep the jack there, it's cheap, it's convenient, it costs next to nothing in any way (BOM, water resistance, space), it gives customers good and valid options, even if they ultimately want to shove a little plug in the hole and forget about it.
It is not like a CD-ROM drive at all, because it is ubiquitous and common in use (unlike optical media at the time of the superdrive removal), and removing it does not notably improve the device in any way. It doesn't hinder form factor, it doesn't hinder any selling point of the device, and it makes hundreds of millions of people happy.
Four years ago, when Apple started removing laptops with optical drives — they only finished this time last year —
from their lineup, very few people were still using optical media on a regular basis. Today, almost everyone who uses headphones uses wired ones when they have the option to.
There's a difference between avant-garde, and jumping the gun.