Steady on lcd !
You are right, this was discussed sometime ago by (I would think) a taller person than me (a towering presence at 5ft 9 1/2 ). It was from memory of this that I posted here.
I read the card on EVERY trip and so do aged relatives. You never know, the location of the exits on a 319/320 might have changed (though I am still not comfortable I understand the wing door opening process

).
Thing was I was always a bit doubtful whether it could be done without neck strain (not as flexible as I think I once was), but figured I would go fluid in a real emergency. So a bit taken aback when this 'concern' (doesn't really worry me) which has never been discussed between us actually was a choice discriminator.
edit: should have said relative is a 6ft 2 85 year old).
Perhaps we are just lazy ne'er do wells who have nothing better to do, but odd it keeps cropping up. Could it be a genuine concern do you think ?
As for CC trying it: just that, if you have a medium height individual, pls try it and report back ! I thought about doing it last time but felt too visible. Maybe I'll hang back on arrival when there are no witnesses next time.