I can't help thinking of one of the monologues of the great American comedian, Bob Newhart; he used to tell of this new airline, "the Grace L Ferguson Airline and Storm Door Company", which had a single DC1 flying to Hawaii; leaving that as it is ... one of the lines was about the difference between First and Coach; those in coach didn't have the hand straps overhead. I guess that'll be the differentiating factor.
Maybe it'll be a new way to deal with unruly passengers as well; ironically, the Chinese used to use what was called the "jet plane" position, where they'd stretched people's arms behind them; That'll teach them to complain!