Main goal is to get children under twelve to go outside, jump in puddles, ride their bikes. My daughter did 10 rounds of this once, 10 hours of youtube with 5 multiplication problems each hour and eventually decided youtube wasn't worth it. It helps children to disconnect for a couple minutes and re-evaluate their summer day life choices.
Oh, well if you have someone of higher authority to enforce its continued and proper usage, then obviously that's a different story.
I was originally commenting from the perspective of the plug-in as a self-help tool where its usage and existence in the browser was determined solely by the users themselves.
In a household setting, I could see it being useful in preventing kids from spending too much time in front of the computer.
