Precaution 2. Set the parental restrictions.

Apple understands that parents are concerned about the content their children will see while using their iPhones and other Apple gadgets, so the company has built parental restriction tools into the operating system. To adjust the parental restrictions, go to the Home screen and tap Settings-->General-->Restrictions. There, you will be able to set restrictions on your child's access to explicit content, the App Store, YouTube, the device's camera, and more.