Some people and their comments!
I once had a Mom at my daughters school carnival ask me if anyone has ever told me I am too old to wear my hair so long? I said "No, why do you ask that?" She replied with "No reason, I have been told that in the past and now have short hair as you can see" I just kind of chuckled, but I took it as an slight insult really.
I do not consider 39 to be old! And my hair isn't down to the floor or anything just about bra strap length.
I have also had the don't you comb out your hair comments numerous times, I guess I would comb/brush it out if I wanted the cotton candy look.