A:AnswerYes. Be aware that is has to have a minimal charge to work. In other words, if the battery is completely exhausted, you would have to charge it to a few percent at a minimum in order to be usable.
A:AnswerI believe so. You can create profiles just as you can on a desktop or laptop. Choose an icon for his profile that he can identify (my son loves tigers, so his is a tiger). His profile you can restrict to child friendly settings. Meanwhile, your profile is password protected. We have done this not only with our devices, but our streaming services as well.