Sounds like a very good use of technology and if I were a parent I'd very much appreciate this information about my child.
Closer we come to the mark of the beast. Revelation 13 [16] And he causeth all, both small and great, rich and poor, free and bond, to receive a mark in their right hand, or in their foreheads: [17] And that no man might buy or sell, save he that had the mark, or the name of the beast, or the number of his name.