I just did this with my 10 year old daughter. She was a bit scared, but walked with confidence up to the summit. The trail is wider and a bit easier than it appears in the video. However, if you have a fear of heights and/or issues with vertigo, it may not be for you.
Go for it...
"It is all very beautiful and magical here - a quality which cannot be described. You have to live it and breath it., let the sun bake it into you" - Ansel Adams