|Quoting cloudboy (Reply 4):|
Really, I want to know if they can make seats with higher backs
They can and do for aircraft with rearward facing seats. In that case you brace against the seat back and the full height headrest protects you. In a forward facing seat you brace against the seat in front, so your headrest position is immaterial. The kind of flimsy headrest you get in a normal seat is for comfort purposes only, it has no real strength, so is perhaps best folded out of the way. Even if a higher stronger headrest was provided, no matter how hard you try to brace against it, in a normal impact you will be thrown forward.
The glass isn't half empty, or half full, it's twice as big as it needs to be.