Our youngest is 4 years old and she had never had her hair cut! She never seemed to need it. Her hair grew very well on its' own. :)
I finally took her in to get the 'baby hair' cut off the back. Bad mom, I know. ;)
She was very excited to have it done.
After the first cut she said, "See, Mom, it didn't hurt!" If she only knew.
After. We had around four inches cut off and it is still very long! It is healthy looking now and makes her look more grown up. That's just what I needed; she is already four going on 25!