Awesome video, Limewave! He looks so proud of himself.
I still remember when my nanny called me at work and asked if she could take the training wheels off of my older son's bike when he was in kindergarten. I said, "Sure, if you want to take him to the hospital"... he was not the most coordinated kid. But, when I got home about 1.5 hours later, he was riding down the sidewalk. I wish I had a video of that.
Other DS taught himself to ride, on the grass in our front yard after we moved to Massachusetts. Of course, he's the one who became a racer .