Steam Family Share becomes even better (hopefully) with Steam Families

i read through it a bit....
you can add your son as a "child" and apparently decide which games he can play

im still not sure about visability for both children and adults alike... especially about certain adult games i wouldnt want others to see
edit: maybe by using the private feature...?

The Private feature does not hide games from Family Sharing. When using Family Sharing, your entire library is shared - including Private and Hidden games. You need to use Family View on the child account to hide adult/horror/shovelware stuff, which will become part of the Parental Control features in the Beta version.

So after testing the beta last night I found the following
1) If only 1 person owns a game, and someone else is playing it, then the original owner can't play the game, doesn't even have an option to kick the other player (so this is annoying)
2) If you mark a game as private the following will happen
2.1) If you are the original owner: Then the game won't show for anyone else
2.2) If you are playing it off of someone else's library: Then it won't show in your activity feed at all

So if you have a new game, and want to make sure no one else can play it until your finished with it, then the best solution is to private the game until you're done with it

Hmm. Answer to first: use mark as private. Ok but jokes aside probably Valve add "kick" option

They did state that only as many licenses as there are bought can be played at the same time, so for two people to play the same game you'd have to have two licenses, aka buy the game twice, but it's good to know that you can private a game and not have it shared. This way if you want to play something and you're thinking about doing it next week and don't want to risk another family member playing it during that time, you can go ahead and make it private now, and start on it next week for instance. Working as intended I guess.