Why would he be sued for libel once they become adults? He has merely implemented his right as a parent to require and prove they are willing to abide under a set of rules for living in the parent’s house.

My wife and I have a set of rules that both our minor child and our middle child who is an adult currently living at home are expected follow. Violation of the rules will result in some form of sanction. For our minor child, she will lose privileges. In fact, she is currently grounded until the end of the school year and had her texting privileges removed from her phone. Our adult child who currently lives with us knows she can either adhere to the rules or find her own place to live.

Pete