Ithought I replied to this but I do not see it so in case I messed up lol... the "trend" of hearing no hair in a fight if you have noticed are between 15 and 19 year old girls and women, in my personal opinion and through talking to men and women out in the street from my job, it seems the reasoning is the boys within this same age group, feel they want their girls to fight like boys ,stand up face to face fist fights, they seem to get off on the girls bashing their faces in, and consider a hair pull "cheating, or cheap move".
As many here have said and I myself truly believe if your in a fght you do "ANYTHING" to win or break a move, to me it is more important to be able to stand up hear my rival scream "enough" and walk away the winner than to care a damn if the crowd thought it was unfair, The younger generation and I am not saying ALL of them but they really have a warped sense of what is right and wrong and somehow the guys today (also the younger side) feel girls are their property and some how girls are slipping into it to"fit in or be part of that bad boy life style, if Mothers and Fathers and older sisters/brothers aren't careful you are going to see a lot less confident girls become women and more of them become gang, and group property and lose their self worth and will do what their bad boy tells them, while we can joke about waht we see or think its amusing for all you Moms or to be Moms and Dads picture your little girl being told by some punk noy worth his weight in paper forcing your daughter to get her ass kicked for his and his friends enjoyment , let that sink in. It is a girls /womans natural instinct to grab hair ,face,breast and clothes these groups of guys want these girsl to acct like gladiators minus the weapons, blame t.v. or these netflix series or MMA whatever but Mothers and sisters and brothers and if need be Dads need to pull these girls aside and explain the obvious about being their own person not a toy for a boy but also if there is no choice at the least know and understand if a fight is going to happen use everything at your disposal to win, if their boy friend can't acept that he is not worth their efforts