Then don't buy this phone. Headphones will soon all be either wireless or use USB C or lighting anyway. And if there are headphones that do not, use an adapter.
It's not like the old headphones can't be used without a headphone jack. The 3.5mm-to-lightning or 3.5mm-to-usb-c dongles are small and relatively cheap. I just keep mine hooked up to my wired headphones.
You can buy a cheap dongle to plug your headphones into the USB-C port. It works fine, but now you have the problem of keeping track of the dongle when they kids unplug it.
USB-C headphones are either free and desperately shit or a very expensive mic+headset arrangement, not simply "headphones".
And adaptors are universally unreliable. The one my samsung phone came with works with literally NOTHING else, and the 4 or 5 I've bought have connection issues.
Also if you care about audio it's another slap in the face as the DACs in those adaptors are pretty high-noise.
I've tried really hard to understand the outrage of not having a 3.5 mm headphone jack. I have Bose wired headphones and just use a dongle on the plane with my phone and tablet. My Laptop does have a jack, but it would be no big deal to use a dongle. I guess I'm just not an audiophile, but I doubt that many people are.
Apple's USB-C to headphone dongle works on Android, I believe, and is regularly reviewed to have the same audio quality as comparably expensive DACs. It's $9
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