Re: Controlling behavior of teenagers
You could also consider turning off the wireless network in the house. Only hardwire a desktop computer that is in a central space. If children need the internet, they must come to the living room or whatever to do what they want to do. Laptops are for doing work or creating things that do not require the internet.
Unless you're in an apartment or house that picks up nearby wireless signals. Then I don't know what to do!
I would tell them it's not because we don't trust you; it's because we understand there are temptations and distractions that we ourselves feel when we have these sorts of freedoms. I know how tempting GS and Facebook are. I know how much time they take away from my work. Which is why when I need my students (high school) to work, I have them sit so that their screens face me (and their backs are too me). I say what I said about trust above. The kids haven't complained.