3.5mm is an audio source, USB is a data source. Any headphone with a USB plug also has to convert digital to audio, something your phone already does. USB is not a replacement by any means.
Stochastic
It very much depends on the pair of headphones and on the hardware of the phone.
My LG phone is a beast. Sure, it's not quite the same audio power as a headphone amp would give, but the audio quality and convenience is fantastic.
It still degrades audio quality and that's an area I refuse to compromise on.
The smartphone is not the expensive part of my mobile audio playback setup, I expect it to be compatible with the standard playback interface of wires.
My headphones (wired) cost more than a smartphone and I expect my handheld device to be compatible with them. I'll rule out buying models based on this feature.
Really? They're much better audio quality than bluetooth.
No, the need is still present. Headphone jacks are pretty essential still, wireless tech is not a replacement.
Wait, how is this a hot take? We as taxpayers subsidize gas heavily. We know how bad internal combustion engines are for the environment. Our climate is causing catastrophic disasters at an increased scale and frequency. I think it's about time we begin to stop subsidising the oil & gas industry.
But there's very low likelihood that a battery will need replacing within the first 20 years.
1-5% of total range capacity per year on average
That's nowhere near how little degredation is actually seen in the data you yourself provided.
And you're cherry-picking the worst car in the study to highlight (Tesla Model S).
That doesn't seem relevant to my ask of clarity on the second point that doesn't involve accidents.
8-10yrs? Why on earth would a functioning 500km range EV that's 10yrs old be labelled as scrap-worthy?
At a glance these look ontario-specific, am I off-base? Never heard of TVO before.