According to the NYTimes, female tweens like to have their hair highlighted:

“Lexi works hard, gets good grades,” her mother said. “I feel like she deserves a treat.”…

Hair treatments like shiny glosses or full-color dye plus highlights, once reserved for women with salaries and mortgages, have increasingly become the norm for pre-pubescent girls as more busy parents with discretionary income are willing to pay salon prices for what used to be done at home. via

Wow, stop the presses!  Young women like to have their done.  Must have been a slow Thursday for the styles section.