This topic has come up several times. However, my experience has not changed.
Many years ago, my father used to pick me up at my nursery school on his motorcycle. Before me he would pick up my sister. We both lived, and this was in the days before people out on helmets for anything more exciting than a rocking chair.
My sister used to fall asleep so my father had to rig up some milk crate sides and rear for her when she ride. She never did fall off. Further, I see children riding all the time. The one I still find funny is when I see a child riding behind their mother, facing rearward, and using the top-box as a desk to do their homework while putting down the road.
As a nation we still continue to enjoy a literally unprecedented prosperity; and it is probable that only reckless speculation and disregard of legitimate business methods on the part of the business world can materially mar this prosperity. -- Theodore Roosevelt, Sixth Annual Message, December 3, 1906