Yeah the point about needing to learn the relevant skills/norms makes sense to me. I just feel nervous about assuming that because a kid doesn't seem to be negatively affected by their parents being suspicious of them, that they aren't - knowing how much of a negative effect from another person on your wellbeing and sense of self you ought to tolerate is also a thing to be learned.
A list like that could be added to the EA Handbook, which is linked on the forum sidebar