We could find out how specific traumas effect people, and which types of trauma do the most damage, but isolated so that you don’t have to go “how much of this is because they got their head shoved in the toilet every day at school, and how much of this is because the parents used them as a pawn in the divorce”? But, you know, purposefully traumatizing children is pretty unethical. Like we could find out, ok, so you know how children than are orally sexually violated will often have dental work be a trigger years after? So then we could find out if the reverse is true – if children have dental trauma, is oral sex (especially on penises, where the mouth is being penetrated) then a huge trigger for them? How closely linked are dental work and oral sex???