How does child abuse start?

Child abuse doesn't just start with the physical contact, it starts when the child is either neglected, sexually harmed, emotionally harmed. or maybe the child is asked to do outrageous things on a daily basis. Child abuse can be grouped into several categories: Neglect, Sexual Abuse, Physical Abuse, Emotional/Psychological/Mental Abuse. But from there it just seems to go on forever. but to answer your question, it starts when the child feels as if they can't escape from the predicament that they're in. When the adult makes them uncomfortable.