Man, does that bring back memories. Thanks for the videos. I've got 2 boys and remember every second of them learning to ride their bikes. Ribs look great too!
That said, I agree with Big George about the helmet. My youngest has had 3 concussions that he got from falling on the sidewalk(well he did run into another kid at a full run), and 2 skateboard falls. He broke his helmet on both skateboard falls so you don't have to be going fast.
His wearing his helmet from now on.
Thanks Marty.