My teenage son has jailbroken his iphone 6s. I would like to know the reasons why iphones are jailbroken. Also I want to install Norton Parental Control on his phone so that I can monitor his usage of the device. He told me that it is not possible to install Norton Parental Control on a jail broken iphone. Kindly let me know if this is so. Also let me know if a Jail broken iphone can to restored to normal state by undoing the jail break process.