What if the battery life were doubled? The trouble with making prognostications of how you would hate something before it's reality is you don't know the other factors.Well, I use AirPods and love them, so removing the 3.5mm jack was a non-issue for me. But as someone who uses an iPhone for long FaceTime calls, and uses an iPhone on long flights (and I see a lot of other people doing the same), I think it'd be extremely inconvenient to have no wired charging port. I also see people every single day walking around with their phones plugged into battery packs.
So I don't have any "data" on it, just like you don't have any data on the opposite case, but if you can name practical advantages to removing a wired charging port I'm all ears, because I only see disadvantages. If the iPhones already have wireless charging, how does removing the wired charging port make them better and more convenient?
Clearly, Apple decided it was best to keep it...for now, but it won't always be the case that having a charging port is necessary with other improvements. Faster wireless charging, longer lasting batteries, other technology, etc.