I’m way too late, but this. A family member recently got an iPhone 11, and it came with, you guessed it, a lightning to USB-C cable. My entire family has exactly one USB-C power adapter… the one I use on my iPad Air 5. Thus, they included a cable that’s completely useless. I advised to throw the cable in a drawer and use existing ones. Had we wanted to use the included cable, we would’ve had to buy a separate power adapter… that comes in its own little box with leaflets. Had that been our first iPhone, we would’ve had to buy a separate USB-C power adapter without the possibility of us using existing ones. How environmental of them!