Part of me wishes everyone had to do this. It seems like we could get rid of all those wasted minutes with passengers throwing fits once they get on board a plane either insisting their bag will fit or more disturbingly they will fit.
I just flew across country in a middle seat for 6 hours and my 6’2″ frame didn’t appreciate the lack of leg room. It adds insult to injury when the passenger next to you also invades what little space you have.
BosGuy 
I was surprised at how many of my friends just don’t give a crap if anyone is bothered by their leaning the seat back. I didn’t know the seat they paid for also entitles them to some space from you as well.
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