> Also, no computers in their rooms - everything is done in more shared space, with monitors facing the rest of the room.

Seconded.

I saw an older friend have a dedicated computer room for the desktops of everyone in his family. It was a family space where any family member could plunk down at any time.

We approach the same via a communal laptop in the kitchen.

I was a preteen getting into computers and programming when Anonymous were the 'cool kids' and all over the news. I remember being on their Wikipedia page, then following to the Wikipedia page for 4Chan. My elder cousin walked in behind me, looked at the screen, and said:

That website... Don't go on that website.

And I didn't!