I see a post with the instruction of how to sign out an user from CE in iPad, but I can't find any way to sign out the user on my tablet that runs on Android. The only option is Switch User, that means if my kids don't switch user, they will be browsing the internet under my userid. I hope in the future, this can be done. It is very common for family members to share mobile devices, right? Especially my kids are still young, they won't have their own tablets to use.