There are multiple ways to participate and support ConVocation. Many people are new to the concept of an indoor public event, and so only want to test the waters. Individual days can be purchased at the event, or through pre-registration.
Many people only want to attend some of the specific highlights of ConVocation and purchase passes for that night only. All ages are welcome to ConVocation.
More info on ages, badges and their colors and meanings (with a picture of the badge itself please).