Everyone is ditching the audio jack so why are we still talking about it?
When they did they were monsters, it was a disaster. I'm curious to see what people will say about the others.
This is more than a little off-topic, but here's my take:
Apple ditched the headphone jack but requires you to use "Lightning," a format that is utterly proprietary to Apple. You
must use Apple-manufactured or, presumably, one day(?), Apple-licensed headphones (which, either way, you will pay Apple very good money for), or you
must use an adapter. The latter is such a royal pain, and so easily lost, etc., that you will eventually be forced to use Apple or Apple-licensed headphones. Think that wasn't the plan all along?
Others may ditch the analog jack but will use USB-C, a format that is likely to be used in all other manufacturer's devices, whether they have an analog jack or not. Buy almost any USB headphones for almost any phone and they will almost certainly work. Any company trying to keep USB-C audio proprietary will get killed, and they know it. It won't happen.
(I, personally, will decline to purchase any phone that does not have a traditional analog audio jack for as long as that is possible.)