Through easy access to education, societal support, and a safety net.
There are many parents out there who were able to break the cycle of trauma and raise children in positive environments. But almost every single one of them talks about how they had the privilege of the support of friends, therapists, teachers, obs/gyn doctors, whatever, to help break the patterns
There’s a reason “It takes a village to raise a child” is an idea that is prevalent across so many cultures. The concept of the nuclear family was a tool to sell more real estate, and we are seeing the consequences of that societal shift today.