Genuinely, good for you. I don't want to switch to something more expensive, that probably wheighs more on the environment (batteries tend to do that), that I'll lose more easily, that can catch connecticity issues, that force me to turn on bluetooth... And that's okay we just have different priorities. What bugs me is only yours ever seem to be catered to nowadays, even though mine don't seem particularly rare and you can ignore jack plugs easier than I can listen to music while plugged on my external battery

Let us not forget that S7 and S7 Edge had headphone jack and were waterproof.

Not user-disassemblable, much less Lego-style modular, though. Easy to make something "waterproof" when you can just seal it shut with "gooey black adhesive".

I personally think the headphone jack is a wonderful truly universal and effectively completely open standard that's very good at what it does, and which furthermore is doubly useful as a generic power and analog signal delivery mechanism, while mandating its supposed successors like Bluetooth and USB-C needlessly and massively inflates the technical and material cost of just playing a dang sound file. You could get serviceable wired headphones that last forever for like $5 if you were lucky; Nowadays, you pay at least ten times that for fragile lithium batteries and circuitry that will break in a couple years, and I really don't like this trend of taking away capabilities for less robust alternatives while portraying it as innovating.

But I also actually use my Bluetooth headphones way more than my wired ones, and I appreciate the potential engineering and market challenges in what Fairphone is trying to do here.

Only if we're talking about phones. My computer, work laptop, steamdeck, and my monitor all have audio out via 3.5mm jack.

I have a speaker set and a pair of headphones, and I can mix and match when and where I want to use them, which is great.

I hope removal of headphone jacks stays limited to phones (and reverses course eventually)

Other than the 3.5mm still being universal basically everywhere except for phones, it's also universal in a purist physical sense.

Any old piece of scrap copper wire connected to a 3.5mm jack, wrapped vaguely into a coil, and placed next to something magnetic, should form a working speaker compatible with the 3.5mm jack. It won't sound hi-fi, but it will work, because unlike Bluetooth or USB-C where you have to read hundreds of pages of standards and do a bunch of engineering just to figure out how to understand the signal, the signal in the 3.5mm jack basically is the sound.

This has direct practical implications as well: The transparent simplicity vs opaque complexity is why wired headphones can be so cheap and yet so reliable, or as hi-fi as your DAC and the speaker cone will allow, whereas Bluetooth devices are comparatively expensive, a mess to connect, fragile, bandwidth-limited, and environmentally and ethically dubious.

Bluetooth, and even USB-C, is basically black magic— Which wouldn't be so bad, except that it's also glitchy black magic. And this remains true regardless of device availability, because it's determined by the physics of the technology itself is implemented.