our brain gets into habits about how we are feeling and reacting to things.
thats why child hood is very important stage of one person’s life
in technical language it is called neural Pathways
basically if you live in an environment where you are stressed and afraid all the time your brain will develop habit to react in similar way for every small and big event.
have you seen any traumatized animal who has been abused. You could notice that the animal would react cryimg even for good gestures.
now think of schools. From morning to evening and from start of month to the end month full is mostly about fear
there is a constant comparison amongst the peers.