Earlier quoted context omitted.
Apple likes to set trends which means doing away with the past. The headphone jack is a 19th century invention and Apple feels that the time has come to make way for new tech as it has always done. Add to the fact that they obsess over making their devices beautifully engineered by making them slimmer and lighter to increase portability. The more portable your hardware is, the more you are likely to use it and recomm…
The big difference that you are missing is that those other technologies that they got rid of had ready and working replacements. The headphone jack does not have a ready and working replacement yet.
I'm not Apple or its representative, merely trying to help the grandparent see why Apple would do what they did.