We started with one of those, our little guy graduated to a trail-a-bike which he can hit the single track with me. He is also getting ready to loose the training wheels on his "real" bike! Biking with kids is great!
And if you no longer go for a gap that exists, you are no longer a racing driver. A. Senna
I was riding the rail trails with my wife yesterday. At a road crossing, a 10 year old was blocking the gate pass-by. I joked that I would bunny hop him if he didn't get out of the way. He looked up wide eyed and asked "Really, you could do that?" At I got by him, I said "Not even in my dreams".