[seabee]

I took a look at the 'Kid Mode' feature on my HTC One. After you add a kid it shows some age-appropriate apps (I guess you can add more) and changes the homescreen activity, modifies the lock screen and intercepts access to other apps, so you can't get out of it unless you do so through the app.

It seems to work well enough, but it could really do with more OS integration e.g. prevent access to the notification drawer and multitasking.

However, given the number of people I know who bought an additional iPad specifically for their kid, Apple probably doesn't need to encourage device sharing!