Earlier quoted context omitted.
My head just barely remains upright whenever I don't use the reclining function. I always feel bad invading the space of the person behind me, especially when it's a tall person who is already at the limit for room. Although I'll lean back all day long when it's a child behind me.
Being such a tall person, your concern is appreciated. In economy class my knees touch the back of the seat in front even before it reclines.
Honestly, I just want to be knocked unconscious, stacked up and strapped down like firewood with others, and then woken up upon arrival. Flights would get so cheap and there wouldn't be any need for any amenities. I think I just hate the fake comfort that airlines try to give us. I'm never really going to enjoy sitting in a little seat inside a metal tube so just cut it with the forced nostalgia of the golden age of air travel and just get me to where I need to be a quickly and cheaply as possible. I'm flying overnight to Europe soon. The plan is to just take a couple anti-histamines and so I don't have to experience any of the flight.