When the rumors first started that Apple was going to remove the headphone jack, people freaked out but didn't really believe it would happen. Then when the company announced that the headphone jack was gone forever, people completely lost it.
However, the new iPhones ship with a dongle adapter to use with your old headphones as well as with new headphones that connect via the lightning port. But it's not the best solution either. The dongle adapter that Apple provides is flimsy like the iPhone charger, which means you’ll either lose it or need to replace it every year because it’ll fray.
If you use the wired headphones that come with the iPhone, nothing in your day-to-day changes unless you end up video chatting or FaceTiming and need to charge your phone and use the headphones at the same time. I used the iPhone 7 Plus to video chat on Facebook Messenger for an hour and a half and since it’s an iPhone (aka the battery barely lasts a day), I needed to charge it. Luckily, I was at home, so I didn't mind switching out my headphones to charge the phone instead, but it was still frustrating.
Most iPhone owners are used to carrying around an extra charger anyway because of its terrible battery life, so that doesn’t really change on the iPhone 7 or 7 Plus; removing the headphone jack just adds to the problem.
