Why did women's hairstyles change in the 1920s?

i'm pretty sure it was because of the ';roaring 20s'; and because women started to work in factories and what not but I'm not exactly sure. Can someone please help? thanks in advanceWhy did women's hairstyles change in the 1920s?
Women suddenly had more freedom in the 1920s, and were sexually liberated (more than they had been in the past at least) it was an expression of rebellion. Skinny, smaller breasted women with loose dresses (flapper dresses) were fashionable, because this image was not aimed at men, if that makes sense? The boyish look was all about women being empowered, hence the short hair. It wasn't as direct as 'lets all rebel and crop our hair' but the fashion trend was influenced by this thought. Sorry for the clumsy wording lol.Why did women's hairstyles change in the 1920s?
Hair styles change constantly. Go to Google Images and look at how hairstyles changed from 1970 to 1980 to 1990. Very different.





It would be almost impossible to identify a specific event which might cause the hairstyle changes in the 20's. Part of it might be women working, but part of it is probably the easier to manage styles reflected the easy-going attitudes of popular culture. Less time spent fooling with the hair meant more time out having fun.





That said, there was also an air of rebellion in deliberately wearing the hair short, almost like men. In fact rebellion against the norm was a popular theme for the decade.
Growing up in the 60's I always thought there was irony in my Grandmother's era, the 20's. In the 1960's, nice girls were supposed to have shorter hair (not real, real short) and girls who were wild, or hippies had long hair. It was a sign of rebellion.





But until the 1920's, girls usually wore long, long hair, often up in buns or some other hair-do. I guess short hair was easier to take care of. I don't know about the factories, but more unmarried women were working in factories or offices after high school until they got married, usually at 20 or 21.





But it was considered very rebellious to 'bob' their hair and they were sometimes thought of as 'loose' women. Of course they wore shorter skirts, may have smoked and did other things they had not done in previous years.
In 1921, women en masse suddenly began wearing knee-length skirts鈥攁 fashion previously considered obscene鈥攁nd adopting the radically short haircut. These trends later evolved into the ';flapper'; look. The flapper image鈥攊mmortalized in F. Scott Fitzgerald's short story ';Bernice Bobs Her Hair,'; serialized in the Saturday Evening Post in 1920鈥攂ecame the icon of new social and sexual freedom for women in the 1920s.





From Shmoop/Roaring Twenties/Gender
i thinkl that too because they started to work their hair would have to be a little more sociable than when they were at home.