> prevent them from learning (by talking to friends in different situations) that being beaten or emotionally put down by parents is abusive and traumatizing.

parents didn't know I'm gay, but they did control all flow of information (before social media) by controlling all movements outside school.

it took me until my thirties to realise how deeply abusive my childhood was. the only hints I had, in hindsight, was the first Christmas at uni, everybody was excited to go home and I couldn't fathom why on earth anybody would want to. I dismissed it as an oddity at the time.