4. Age
Age is another factor that could come into play when looking at the causes of fear of long words. While you won’t exactly develop the phobia just because you turned a certain age, there have been various studies showing that it is, in fact, a risk factor. By age 10, most phobias have already formed.
That being said, there are still some cases in which people develop phobias beyond the age of 10 perhaps due to one of the other causes listed above like traumatic events or changes in brain function as a direct result of drug abuse.
The minimum age at which someone can develop a phobia is a topic of debate amongst psychologists the world over. However, there are some studies showing that even newborns could develop a phobia if they have a negative experience with something in particular. This is why babies in the incubator may develop claustrophobia later in life.