Question for ya?

I am watching Wife Swap (it orginally aired on Nov 27, 2006). This particular episode has a family that is exteremly laid back with their 3 daughters, one has some serious issues with authority figures. The parents feel that the children have the right to have their own lives and to live them as they see fit. The second family, polices their 2 daughter...including going through all their things in their rooms, listening to them over an intercom system that has been installed in every room of the house, the big topper to is that the parents have a security system with video cameras installed in EVERY room of the house, to monitor them. These 2 girls aren't allowed to have any friends over, the parents feel that family is the only thing that is ever going to constantly be there for you, that friends come and go. Do you feel that this is a invasion of privacy? Do you feel that parents have a right to go through every personal item of a childs and to snope on them? Do you feel that there are certain bounds that shouldn't be crossed with teenagers to show that you trust them fully, unless they have given you just cause (which isn't the case in this show) not to trust them fully? Their 17 yr old daughter is not allowed to date, never been on one. She has to work for her parents around the house doing the things that her mother should be doing in the first place in order to pay them back for the car that they bought her (she has to pay the full cost of the car back).