Girl A or Boy Z are born into the world and from the beginning of their life experience, they get treated well by their parents, their family, their extended family, their peers, their friends, their teachers, the postman, the delivery man, the shopkeepers, their co-workers, their employers, and by total strangers. Girl A and Boy Z are really nice people and very popular because of the preferential treatment they get for looking good. Generally speaking, they are estimated highly in all areas of their life.
It would be a lie to say that attractive people do not get treated better by everybody because of their appearance, scientific research has suggested this statistical truism, and this becomes their worldview of life, that people are generally nice to them and this is the way the world is to them, and they become nice as a product of being treated nicely by others.
Is there any grain of truth in this?