Too young for online/ digital literacy ?...maybe not

At what age can online/digital literacy activities be integrated into the classroom?  When I read this question I immediately thought of my 3 year old son.  He has been engaging in digital literacy since he was 2.  He watches videos online, listens to digital stories through bookflix, and plays educational games on various websites.  While researching the web in search of evidence that would support my choice to use digital literacy activities with my son and my students students, I found a video titled  "A video of k-12 students today".  In the video children of all ages give thier reasons for wanting technology in the classroom...very interesting check it out...