I haven't done a Facebook group, but I would be hesitant to post picture of the daycare children on it. Once you post pictures on social media you lose control of them, and this could cause you problems in the long run. Check out the Facebook rights and responsibilities and it states that you agree to:


For content that is covered by intellectual property rights, like photos and videos (IP content), you specifically give us the following permission, subject to your privacy and application settings: you grant us a non-exclusive, transferable, sub-licensable, royalty-free, worldwide license to use any IP content that you post on or in connection with Facebook (IP License). This IP License ends when you delete your IP content or your account unless your content has been shared with others, and they have not deleted it.