The hair is always blonder on someone else's head

I was washing Sarah's hair and telling her that it's the most beautiful hair I've ever seen, and she said, "I wish I had your golden hair."  I told her that mine is the color of dirty dishwater, and she said, "No way, Mom.  Yours is the color of pure gold."  Then she stroked it and looked at it in awe. 

Here are some examples of her fabulous mane (she was only two years old in these first two pictures):