The mother could have very well taught the daughter a lesson without using violence.
It's horrible that she hit her in the face with the belt to; that's too much!
If I had a daughter like this, I'd shame her (make her wear the ugliest clothes ), take away all of her electronic devices that have a camera on it all the while making sure she understands that there are predators out there and how this could very well come back to haunt her in both her profession and overall personal life.
I can understand the anger that the mother had, but she went about it the wrong way.