So far all the Nanny shows I have seen have shown that it is lack of parental control for why those children are acting up like they do

Those parents rather not have an upset child then to make em mind. If they would discipline and stick to the discipline they would not be in that boat in the first place. They have NO clue how to get their kids under control because they let them run a muck for so long, they need someone to come in and sit them down and tell them what they should be doing. I see the look of shock

on the Nanny's face when they are watching a day unfold in those households. I would be so ashamed if my kids were that bratty!
I thankfully do not have children that behave like because my husband and I make our children mind and they are aware that their is consequences for braking our rules we have set forth. We get complements in all situations ( school, eating out, shopping) on how well behaved and polite our 4 boy's are. I would hope that if I lacked parting skills then a family member would of sat me down ant told me that I need help and parenting classes! Sometimes I wonder how those kids act in a school setting where you know they have rules that are to be followed.