Or: "how to ruin your kids lives in all the sake of convenience".

I came across a recent news story about bulletproof authentication for high school students. Ostensibly, the goals are very good. Allowing students to check in and out of study classes instead of being driven to distraction by following a more regimented cirriculum:

...They settled on flexible modular scheduling. High school students will still take core classes, but will be given a lot more time throughout the day to visit resource rooms staffed by teams of teachers to help them with homework or projects...

Students, being kids still, are assholes. And they slack a lot. So, there was a bulletproof need to make sure they were checking in to the right places and tracked efficiently. Enter finterprinting.

...Fearing student ids could easily be traded among students. School leaders settled on the biometric scanners fearing student id cards could easily be handed to other students looking to skip class...