I took my daughter to see it last year when she was 6. She definitely liked it. Her favorite thing in the world is Peter Pan, and she understood going in that it was about the author, not Peter himself. Still, her favorite scenes were the ones with Captain Hook and when they were rehearsing the show. She has seen Lion King and Aladdin as well, and I will say those captivated her attention much better, but she did enjoy it- and as other have said, the sadness/heaviness went over her head for the most part. We recently saw Matilda and Wicked, and she LOVED both of those, but she was familiar with Matilda from reading the book and familiar with the music from Wicked.