An Athlete Profile is a sub-account created within a user account that is specific to a certain athlete. Each user account can have multiple Athlete Profiles within one account. Example: Bobby Smith creates a user account. He can then create Athlete Profiles within his user account for his two kids, Sara & Tony. Bobby is the owner of the user account and Sara & Tony are Athlete Profiles within Bobby’s user account. We recommend that each family only have ONE account. The family can share the email/password and each login (on multiple devices).
Another option is to have each parent create a user account and then share their kid's Athlete Profiles between these two user accounts. Read this article to learn more about sharing athletes amongst user accounts.