Cellphone as chaparone?

This makes me feel kinda funny...

The idea is for about $10 a month, parents can track their children by requesting the exact location of the child's cell phone on the parent's phone or online. One service also allows parents to designate a small geographic area and get automatic alerts when their child enters or leaves that zone ("Dude! That's, like, so whack! Ditching class shouldn't, like, be this hard, an' stuff!"). For example, parents would know if a child left the vicinity of school during the middle of the day.The service can also be programmed to automatically send an alert at a set time each day, such as when a child is due to arrive at school. Children get text messages on their phones every time their location is requested, so they know when Mom and Dad are watching.