I watched my nephews, for 20 minutes, simply throw blocks into a box and say "throw and a miss! Throw and a hit!" It was mindless and ritualistic, and frankly we should frightened of this wooden blocks trend. Don't get me started on the game they call "Tag". /s
I feel like the word "addiction" is losing it's meaning. Just because someone likes something and continues to do it doesn't mean that it's an addiction.
// edit: And really, think about your own experience with video games. Sure, we all played video games at the expense of our homework and conversation with my parents. But who could blame me? Middle & high school cater to the students with room-temp IQs, my parents just rambled about the economy and weather and the boring things I talk about now, and I lacked any challenge in my life expect punking noobs in Starcraft.