"Like many of his peers, Christopher believes that there is a significant difference between having the ability to violate privacy and making the choice to do so." (Its Complicated, 74)
I love my mom. She is a great mother; however, her views on privacy line up pretty closely to that of the "intensive" parenting style described in the chapter which caused some tension growing up. Before my junior year of high school, it was not unordinary for her to read through my texts, track my location, or even search through my social media outlets, and this was not because of anything that I had done to warrant this, it was just her philosophy of what a loving parent should do.
I believe that, as a parent, it is important to have knowledge of your child's whereabouts when his safety is not ensured and general knowledge of what is going on his life. Because of this, parents should have access to this information of their child (e.g. location services and "friends" on social media); however, as the quote points out, there is a big difference between access to violating privacy and actually doing so. I think that parents too frequently make trust and privacy complementary properties, where the increase of one causes a decrease of the other, which I think misses the mark of what trust means completely.
There are plenty of ties that can be made to the security vs. privacy argument, but one obvious difference is the scale of operation. On the national scale, the government is far outnumbered by the people, while in the family, the child is typically outnumbered by other family members. A smaller scale makes bad behavior much more difficult to sneak by the involved parent. This makes invasions of privacy cause, usually, just negative feelings and no protection of the child. This being said there are plenty of examples in which this is not the case, including an ignorant child who does not know how to properly act online or a child who actually has had made poor decisions in the past.