Just a response to Chester's post.
The corps will be running an all ages program, as well as a junior program. I personally teach the guard in the junior corps, and currently my youngest is 11 and my oldest is 16. So the chances of the all ages corps having 4 year old kids running around the field is unlikely (especially considering we don't have 4 year olds at our JUNIOR CORPS rehearsals). I've been talking to many of the people I marched with from 2000 and on, and many of them are interested and excited to see what's being set up.
~Jenn