I was also upset about the lack of a headphone jack. When I got robbed and lost my iPhone 6S, I bought an iPhone 7. Similar to a comment down here, within a week; I was on a bus and I got stuck with my earphones cable. Phone went flying.

I decided I had enough of cables and bought a pair of wireless headphones. I am never going back to cables. The battery of mine lasts for 12 hours when continuously used. I charge it while I sleep. Now I am not missing the headphone jack anymore.