Is it true that high school girls will not wear the same clothes again if they've posted pictures on FB while wearing them?

Seriously. A mother I know told me this. She said her daughter and her friends do not consider it fashionable to have pictures on FB showing them wearing the same clothes twice! WTH?!?!
Are they more stylish than Kate Middleton, DOC?! Do they think they’re Lady Gaga who needs to wear something different to keep her career moving?
Please tell me this is an aberration at our local high school and is not “a thing.”