They got the size wrong, thinking everyone wanted a big phone and back tracked with the SE which seems to have done very well. Now you have a device which already has a crap battery life and you can't charge and play while using lightening headsets.
I only have to look around my office to see the number of people using a phone on charge most of the day while listening to music or watching tv on the sly. So the option is a blue tooth headset which you have to have batteries or maintain the charge on.
Again this is creating a new solution for a problem that didn't exist. The adapter is good but unless I can charge and use it, then it's pointless.
I think I will change manufacturer, not just because of this it will be one of the points. New car has lcd with phone mirroring and car play and using iPhone is so locked down compared to android.