The purpose of a family account is to house individual player accounts. Parents with multiple children would find the family account beneficial. For a parent with two or three (or more) children who play soccer, they can create a family account and then import the individual player accounts into the family account.
When in the user login section, go the the "Players & Family" section. Once in this section, use the "Family Account" login credentials on the right side.
Once logged into the family account, click the button "Add Player to Family"
In the section labeled "Import your Existing Player Profile", type in the username and password for the Individual Player Account, then click "Import". Continue this step for as many players you have.
(If your child does not yet have a player account, you can click on "Create New Player".)
Once you have uploaded the played, click on "Family Members" in the black bar to view all players linked to the family account.
You can then click on any player to manage their specific information