Well, as you could probably guess I dont fully agree with this. Not letting a child do what they want with their body is called being a parent.

Originally posted by Kfamr

Not letting your child do what they want with THEIR hair or their body, is not letting a child live or be a child.
I also believe that children live in families and are, to a certain extent, responsible to those families. While I personally probably mind if my kid dyed their hair (imaginary since I dont have a kid ) I can understand why some parents aren't comfortable with it and I respect that. A parent does what they think is best, and kids live within families. If the family values are such that purple hair would be unacceptable, then that's the way it is.
Kids do become adults and then can and should live their own lives.