You may want to update the participant age range for your campaign.

How to get there:

Login to your GivingForKindness account.

Click on your current campaign's name or the edit link to the right of it.

What to do:

Click on the "Setup/Tools" tab. 

Click on "General Campaign Settings" from the left hand side.

Scroll to the heading "Age Category(ies) of Participants" and check the appropriate age groups.

Click "Save Setting Changes"