This whole headphone thing is much ado about nothing.
The jack had to go because the phone could not get any thinner with it, pure and simple.
The phone will come with earbuds that work with the Lightning port.. All your wireless Bluetooth headphones will still work just fine. So unless you have some expensive wired headphones you want to use, who cares? And if you do a cheap adapter takes care of you.
Really really don’t see this as a big deal. I am no early tech adopter and I haven’t purchased any wired headphones or speakers in at least 5 years... Can’t imagine doing so ever again.
I also have never purchased a set of earbuds beyond the ones that came with my phone.
If I did have a $200 set of earphones that were wired I may not be happy but a $10 adapter or whatever and I ca. Still use them.. But honestly I would probably just go buy a nice Bluetooth pair and be done with the cord entirely.
Apple should play a commercial to highlight the fact that they supply a free adapter and wired headphones with the iPhone 7. They need to scream it, because so many people miss this point. The adapter is included for free!