My first bike was a Supercycle from Canadian Tire, I think I was 5.
My Dad and I went to the store, and picked it up from the disribution centre right beside his work.
We put it together, ok I watched him, in the basement, and he promptly threw out the training wheels.
The neighbors son taught me to ride... by pushing me down a a hill. It worked, no harm, but I've been crashing ever since.