Mini Me has pink hair. She LOVES it!
Same goes for a child's clothing. The child may get to chose what he/she wears from day to day, but most often, the parents went on the shopping trip and chose the clothes the child gets to pick from. A child has little to no control over the cute outfits their parents purchased. This once again is focusing on something a child has no control over.
Mini Me gets LOTS of comments on her appearance. For her entire life, the message she has been receiving from well-meaning strangers is that she is beautiful. Mini Me is smart, funny, caring, generous. None of these attributes are being highlighted. Only her looks.
Now, when we go out, people comment on Mini Me's hair - not her beauty. Coloring Mini Me's hair was the perfect thing to do to draw the focus away from an unchangeable to a changeable.