The classic toy wagon was designed by Antonio Pasin, who founded his company in 1918. Pasin wanted to give his wagons a modern flair, and chose the word "radio" for what was then a new form of communication, and "flyer’ for the wonder of flight—hence, "Radio Flyer."
Three of us girls went down a steep hill (actually it was the road in front of one of the girls' houses) in one of those when we were probably around 11 or 12 (who remembers?). When I decided to do it by myself, my weight wasn't enough to keep the front wheels from swerving all over the place no matter how hard I tried to control the steering with the handle. It turned over, and I skidded down the paved road long enough to have many painful abrasions. I hobbled home embarrassed about the whole thing.
Some of us in the neighborhood did foolhardy things like that as well as riding our bicycles "no hands" and standing on the seat while speeding down a driveway that had two right-angle turns in it. My knees were scar tissue after a while. Yes, my mother was home and a good mother, but that's when kids played outside all the time in the neighborhood. We all had large yards, an empty lot, and a woods behind us. We survived quite well actually.
Here's a wagon with cute puppies to help you cope with the sadness of that story.