6ft DH doesn't tend to think about his height- because the world fits him.
He can actually drive any car because he can actually reach the pedals. He doesn't need a sun visor on the sun visor. The seatbelt doesn't cut across his neck. He's not dangerously close to airbags (and being male never had a baby bump rubbing on the steering wheel before getting too vast to fit behind the steering wheel and reach the pedals and have to stop driving) Some of these nusiences are actually fairly major health and safety issues.
I CBA to go to crowded events because they all just turn into arm pit conventions and I don't get much out of them other than stimulating my sense of smell.
Fixed shower heads often spray water out too wide by my height 5'2" so I end up shuffling around between the dribbles.
Why are hand driers often set at shoulder heght so you have to do some kind of Tyranasaurus/ funky chicken move with your elbows to stop the water trickling down your sleeves.
I've had people talk literally over my head with questions that should have been directed at me. I frequently used have colleagues failing to identify me amongst my class of y7s/ y8s which was incredibly undermining. Until I had children in my 30s, I often had people attempting to enter queues ahead of me because they didn't register that I was there/ an adult. I'm not noticing myself "becoming invisible" as I get older because I always was invisible!
It's depleting when life is the wrong size. When a food shop is more like an agility course (behold my skill at the chest freezer dive as I vault up-side down to reach the last frozen peas). It's uncomfortable to painful when the only furniture that fits is old theatre seats because most furniture has "lumbar support" half way up your back, you're slumped so that the front of the seat isn't digging into your calves forcing them to wraggle in the air or just good old dangly legs because you've never been able to confirm if the legend of the foot rest is true (is it a leg-end or a legend?)
Life not fiiting applies to tall people, but the world is gradually shifting to taller, and that's making short people issues harder.
And no, cheaper children's shoes are not a perk. I don't have the taste of a 9yo, and at twice the weight and being designed to be grown out of, they don't last long.