Contrary to what most people think, most phobias for automobiles do not appear as a consequence of an accident or a near accident. Agoraphobia has to do with the fear of losing control. It is a learned fear, often coming from parents, who then continue to pass it off to their children. Phobic parents teach their children to either become compliant and phobic themselves, or defiant, which may not be a desirable way of protesting. Agoraphobia itself grows out of other similarly contagious but more primitive fears: the fear of getting lost, the fear of strangers, the fear that feelings can rise to such a level that they cannot be resisted.
Read the entire article here: Agoraphobia and Automobiles