I still have not heard a rational explanation how the removal of the headphone benefits consumers. Doing so only reduces consumer choice while increasing inconvenience and expense for those who own a nice pair of buds or phones. (Note: I only said removal of the headphone jack. My argument goes know further that point).
If audio via the Lightning port is a vast improvement, fantastic, but it should be the marketplace that makes that decision, not Apple. Apple could easily allow both analog (headphone jack) and digital (Lightning port) audio output from iPhones, in addition to BT, thereby affording consumers the choice of keeping what they have, moving to a pair of Lightning or BT based buds or phones worth the cost of switching and when the switch is right.
Instead, Apple is attempting to push iPhone fans to conform to its wishes. This is not the "1984 won't be like 1984" Apple I've known. This is more like the totalitarian "we are embedding MS Explorer in Windows so customers have to use it" Microsoft I despised.
There is a % of users that won't care either because they just use the supplied buds, BT, only listen via internal speaker, or are willing to let Apple make choices for them. But, as we, and Apple, discovered with the change from 4" to 5"+ screens, there will also be a significant number of consumers that are interested in upgrading but not at the expensive of leaving behind what they view as an important feature, be it screen size or headphone input port. It makes no sense to me that Apple would make the mistake of pushing away customers at the time they need them the most.
A lot of people have expensive h'phones and buds they like, don't feel the need to abandon, want the expense of replacing, or feel it's not practical to buy phones for just the iPhone since the Lightning port is proprietary. To this group the decision becomes iPhone 7 or keep my high-ish end headphones. That poses a big challenge to Apple at a time they can't really afford to test consumers will. This isn't 2009 when people would line up no matter what Apple offered in the new iPhone. We know from SE demand that consumers now want what they want, not what Apple decided to dole out. The new rule to sales is consumer choice.