I hate bars that don't have stools with backs and arm rests. I like that barrier to keep drunks who wobble away from me. I can tuck my purse against my hip and the arm of the stool to keep it safe as well. It is also handy at sports bars and pubs that have the tvs up high over the back of the bar soyou can lean back into it to watch. It also stops people from bumping into you when they order drinks. You can also hang your coat on the back of it..  It is just me liking my personal cocoon though.