I agree (mostly), and while it's important for me to "be around" (my office hours are very similar to the author's), my kids spend a good chunk of their time playing with one another and with other kids. I like to be around, because sometimes they say "hey dad, let's play _something_," but mostly my wife and I stay out of the way.

There's a fine line, however, between being a good parent who doesn't hover and "arrange" their kids' lives to death, and a parent who is literally never around to see their kids. The whole "arrangement" thing also goes for parents who schedule every minute of their kids' days so they don't have to be around the house.

Personally, we enjoy spending time together as a family. Most weekends in the summer and fall are spent rock climbing and camping. We do, however, spend many of those days with others (and other families), so our kids are generally off in the woods doing what kids do. But, we also spend a good bit of time together, and I think it's meaningful to have activities that _are_ family-centered every so often.

Another cultural shift you don't take into account is the growing fear we (in the U.S., at least) have that our kids are simply going to be whisked away while we aren't looking. Many parents would never even consider allowing their kids (I'm thinking under ten years old) to wander around the neighbor, or simply walk over to a friend's house and see if they are around.

I do, however, think you bit too harsh on the idea of being a "Good Parent." There's also a fine line between giving your kids enough rope (and freedom) and being the drunk who only yells at his kids to get him another beer (yes, that's a bit of an overstatement). There are plenty of nights when I come home from work, we eat dinner as a family, and then my kids disappear to play. I won't see them again 'til bedtime. But I feel as a parent, I need to be available for them when they want me, too.