I'm frankly not a fan of hyperstitious social pessimism. Everyone needs to understand that this isn't knowledge, it's justification.
It's justification for being an asshole to people under the guise of 'helping' them. The people who end up believing it are rubes who do the same to others. Making someone tougher is survivorship bias by another name. It fails to account for the people who don't have supportive family members and friends. It's solution to this is saying, "it sucks, but they just couldn't take it," which does nothing to make things even slightly better for the next person. We're left with those who survived.
It's justification for being an asshole to people under the guise of 'helping' them. The people who end up believing it are rubes who do the same to others. Making someone tougher is survivorship bias by another name. It fails to account for the people who don't have supportive family members and friends. It's solution to this is saying, "it sucks, but they just couldn't take it," which does nothing to make things even slightly better for the next person. We're left with those who survived.