I think it is yet another thing rooted in our deep fears.
And I think it is our fears that cause some over-reacting. I feel sad that my fears weren't understood as the root of so many of my issues. Yet, I can also see how exhausting it was to be a parent of a very worried, fearful, paranoid, etc. child.
I long for reassurances to this day. And while I try to honor that longing for what it is, the reassurances not given or not understood as needed when I was young, it can also make me feel more 'different' from peers who are more emotionally mature and don't have that need. But being able to look at it, to notice it, to explore it in therapy, has made a huge difference.