I think maybe it would take a LOT for me to do that- but
better to have the girl change her own mind. It gave her what she needed- a reason to do what is right. Isn't that the idea of our criminal justice system? So she got it early and might never have to write on a job application that she has committed a felony because she will think before she acts.

Good gracious! That woman should have given her daughter a sign saying "HELP! MY MOM IS UNABLE TO EDUCATE ME."
Never blame your incompetence of being a mother to your child!

Yes, and I believe it starts from...

"I hope this works for her. I love my child. ... I could be beating her to death, but I'm not."

How can she think never mind say that any type of beating of her daughter is acceptable or likely to work. Do parents forget that they were once teenagers too?

Does it highlight that retribution/humiliation works or not? Is the kid subdued or telling even more lies, biding her time. Problem is, having 'worked' once, likely is the punishment will double or treble the next time! Then what? Leaving home? Suicide? And the parents are convinced they did everything right. Well it worked before, didn't it?