Why does iOS not support multiple account logins?

The recent Android 4.3 upgraded multiple-account login feature has become a big hit, with content permissions setting to stop your kids from downloading paid games or apps from Google Play. A lot of people are looking forward to similar features on iOS 7, but we're not sure if Apple will add this feature. Some people speculate that this is Apple's deliberate little mind to see what it is. October 2012 Android First added a multiple account login feature in version 4.2, from lock screen, wallpaper to other applications. The consensus was that if two people shared a tablet, it would be appropriate to look at the email and schedule separately. In Android 4.3, take this feature to the next level, upgrade to a restricted profile-"Restricted profiles for tablets"-the privilege configuration can be used to restrict child behavior, and can be used at POS terminals and retailer stores. Permissions configuration includes: Parental Controls: Selective restriction of family members accessing adult content kiosk: Setting up a tablet to display retail to the user for selected apps and features: Let the user play the tablet function, but prevent the user from browsing or playing the game point of sale: Limit the employee's use of the selected sales and registration procedures, iOS does not support multiple people sharing a device. All users must use the same instance of the operating system. That means the device needs to log in and out of various applications, cover phone numbers, share camera settings, and so on, which has been a headache for parents who occasionally hand over their phones or tablets to their children. Why? Multi-account logins do not appear to be in iOS 7 and may take another year to see this feature. Here we do not talk about conspiracy theory, directly explore why Apple should ignore such a feature? One possible reason, because it doesn't want a family member sharing an ipad, because Apple wants you to buy more ipads, that's probably the best reason. In addition, according to TechCrunch, why the Multi-User login function only appears on the tablet, because Nokia has applied for the patent for its mobile phone. Continue with the core issue, why Apple does not support multi-user login capabilities. What do you think?