If you want to kill the 3.5mm jack, then the solution is to invest in making Bluetooth headphones less obnoxious to use. Temporarily forcing the world to bungle

If you want to kill the 3.5mm jack, then the solution is to invest in making Bluetooth headphones less obnoxious to use. Temporarily forcing the world to bungle with USB-C and Lightning adapters, device-specific headphones, and\or poorly developed Bluetooth headphones (which all have relatively short battery lives, obnoxious pairing procedures, etc.) is insane. I wish manufacturers would instead invest in making Bluetooth headphones so nice and functional that people don't want a 3.5mm jack, and then you can kill it mercifully.