you can make a list of people you don't want to see your posts and change your privacy settings so your posts will be shown to all your friends beside those in this list.
which shows do you watch on your phone? i mean, if you watch game of thrones or something like that, it is difficult to appreciate all the special effects through the phone.
The are already spying on your children through barbie so don't worry about it.
http://www.theguardian.com/technology/2015/nov/26/hackers-can-hijack-wi-fi-hello-barbie-to-spy-on-your-children