After some reflection, and since I haven’t seen anyone else mention it, I guess I will. Some of this also stems, I suppose, from the underhandedness of other industries, where it results in paranoia overall.
Hiding information about negative occurrences and side effects during trials, makes the pharm industry suspect. Reading too much about Monsanto and the food industry also probably scared the bejesus out of these parents. They didn’t know how to process and balance out that information to the point where it became a mental illness, like a phobia. If one dog bit and hurt a child, all dogs must be avoided at all costs.
The other side of that is that some life styles become a religion to some people.