hair do or don't?

(photos via people)

Pigtails on little girls are so sweet. But when I feel playful and fix my hair like so, I sometimes get mistaken for just that: a little girl. Once, I went to pick up my 11-year-old sister from an after school program with my hair thrown in loose pigtails... and I got asked by a hall monitor if I had a hall pass. Embarrassing. And I'm not particularly tall either. (But I'm not midget height!)

So, are pigtails a don't for girls above the age of ten? Or should we ladies be allowed to rock whatever hair style we want?