If mental abuse is a crime, I don't see people being charged or punished because of it. Best I've seen is that some divorces use that as a reason.
Remember the saying " Sticks and stones will break my bones but names will never harm me." ?
Some sadist had to have come up with that one.
Raise a child that is never physically harmed but told every day of their life that they are stupid and worthless. A broken bone will heal but the mental damage stays for life.
Why do you think the pen is mightier then the sword, or that unfounded gossip can destroy carears.?
Brain washing, is more effective then physical torture.
Mess with the physical body's of humans and one has no idea how that will turn out.
Mess with their mind, emotions and beliefs and one knows full well what to expect.
Mental abuse has many forms, from the subliminal messages on billboards to intice you to suddenly need to buy a lawn mower when you have no lawn to mow to being a 55 year old man buying a thong.