Kids are kids. Nothing more.
Far too many adults run away from spoiled kids when all that is needed is to define clear boundaries well before all hell breaks loose.
One ex used to call me when she was unable to get her boy to calm down. All that I had done over time was to gain the kid's trust, while letting him know that I was the adult. The reality simply was that he was bored out of his mind and knew that his mom would give him anything he wanted just to shut him up. He needed structure and guidance. That's it.
She clearly wasn't parent material, so in my eyes she definitely wasn't wife material. We lost touch a while back, but I hope she at least picked up a few tips on how to deal with him.
If your friend is serious about this woman, then he has to firstly figure out what exactly the mother and others in the family are doing to encourage this child's behaviour. Then he has to figure out how cognizant this child is regarding the way she acts. Some kids are pretty sharp about whom they can manipulate. Let them know that you're onto them and they often won't play the same game with or around you.
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