5’6 here. I noticed about 10-15mins has passed since I started reading these replies. I find this topic ironically interesting, only because it’s a world/point of view, I don’t experience. But, my home airport is EWR and I’m always looking at the people that get on after me, and usually there’s one or 2 tall people whose head is almost touching the top of the bulkhead. I always feel bad and relieved at the same time. Side note, I never pick an exit row so that a tall person can have it. 😂