Kids do need free time because they have hard long days also. Also when kids have free time it lets them use their creative mind and just hang out with friends so they can bond and become closer.
Play video games, play out side, watch TV, go to the mall, read a book, cleaning there room (and that's not many kids who would love to do that) ..and hanging out with friend at fun at places ......
not sure about this, but They get home schooled till they turn seven to be slave. The true answer i only know is they have break on Sunday, for church.