My American friends both here on these blogs and in real life all have theories about why bike usage in America dropped so dramatically since WW2.
After viewing the above safety video from 1963, I am quite convinced that we have found the root of all evil. It is my theory, this theory of mine which is my theory that this film scared the pants off of an entire nation and effectively killed any and all desire to ride a bicycle. :-)
I fear nightmares tonight. I'm staying up.