Childhood experiences, including trauma, miscommunication, or unhealthy family dynamics, can have enduring effects, leading some individuals to cut ties with their parents. According to Carly Harris, such early experiences can create feelings of disconnection, frustration, and resentment, prompting a person to sever the relationship if efforts to improve it fail. As children grow and develop their own perspectives, they may clash with their parents more intensely, especially if there are pre-existing tensions. Dr. Nobile notes that these conflicts often escalate in adulthood, as young adults confront and address longstanding issues, sometimes leading them to distance themselves from their parents.
https://www.parents.com/toxic-parents-should-you-cut-yours-off-8706853
