Used it once to debug an audio problem, haven't used wired headphones since years

I used to be quite hardline on this, however now I use a portable DAP (Hiby R5 Gen 2) for my music. It has a class A amplifier, balanced output, a Terabyte of storage, and streams Qubuz Hi-Res. So I don't use my phone now.

Mine has one but even though I don't use it, it's good to have it for emergency situations when your bluetooth headphones are out of battery.

My phone has a headphone jack and dual SIM cards but I would totally trade the jack for an SD Card slot.

I have had exclusively Bluetooth headphones for almost a decade at this point. I keep a backup pair of wired usb-c earbuds in my glove box in case I don't foresee needing my wireless buds.

Controversial take - sometimes you've just got to adapt to the times. I'll never forgive everyone for removing SD expansion in phones, because there's absolutely no replacement except "buy our expensive cloud storage and own nothing ever!" or "spend SIGNIFICANTLY MORE THAN THE ACTUAL COST OF FLASH STORAGE to increase your onboard storage!" which are both unacceptable. But wireless headphones are perfectly acceptable. If I want an audiophile experience, I'm absolutely not using my phone anyways.

I use bluetooth earbuds for work - I used wired buds up until this job, but I ended up constantly ripping them out of my ear by accident, UUUUGGGGHHHHHH. But I would still be using wired if I could. My husband also uses wireless earbuds at work, but needs a headphone jack to play music through his ancient work truck. He had an adapter while he had a phone w/o a jack, but then he couldn't charge his phone while listening to music. I know there are splitters out there, but we didn't end up buying one, and he just replaced his phone with a new one that includes a headphone jack.

I'm probably the odd one out, and I used to be infuriated by the idea that my phone didn't have a headphone jack, but I got used to not having it.

I only use wireless headphones now, and I have a USB-C adapter I can use in case I do want to use an aux port. Have been tempted to buy some decent "Chi-Fi" wired earphones, I do miss higher quality sound.

I wish my tablet had a headphone jack. I have to use an adapter but I would want one on there by default. I haaaaate bluetooth headphones. Too much delay. And no, I don't have a phone.

Man I can only dream of a new pixel having a headphone jack. And ain't no way I'm getting off grepheneos.

You ask three different questions here but expect only one response.