I personally believe that the ideal situation is in fact everyone reclining their seat

I'm about 6' tall, even. In some cattlejets, my knees physically touch the seat in front of me. A lady on a recent flight flung her seat back and I cried out involuntarily in sudden pain.

I understand why she wanted to lean back. And yet, when she did, it freaking hurt. I'm around the 80th percentile in height in the US, and while my doctor says I could lose a few pounds, I wear a men's large shirt so I'm not exactly enormous. Even though they seat can technically recline, you cannot convince me that they're actually meant to.

Can I have the 5th element padded roller beds that are disinfected between every use?

My ideal airline would be one where you show up to the airport with your luggage, check it in, and then they knock you out and load you on the plane.

You get woken up at your destination after they've taken you off the plane. It would be the closest thing you can get to teleportation.

Then the airline wouldn't have to fuss with preparing shitty food and coffee or deal with annoying passengers. A win for everyone!

Not every seat reclines: the one in front of the exit row is a key example.