How does Jo cutting her hair in chapter fourteen affect the family, and what does it symbolize in the broader scheme of things?

The family is shocked, but appreciative, since Jo helps to pay for Marmee and Mr. Brooke to go to Washington. Jo cutting her hair symbolizes change. The family will have neither their father nor their mother to help them for a while. They are on their own. Jo crying over the loss of her hair also symbolizes how difficult it can be to let go of things we cherish.