Customers who visit your gym can complete a waiver in SportKeeper Kiosk mode. Upon completing the waiver, the customer is created inside of your SportKeeper app. SportKeeper waivers also support adding minors, and having the parent or guardian sign the waiver on behalf of the minor.
To get this setup, you'll want to create two waivers:
a primary waiver that customers will sign
a minor waiver that customers will sign on behalf of the minor
Learn more about how to set this up in the Waiver component.