To add to the massive list simply crazy put up, a few reasons why I think it won't work are:
1) Students are overworked.
Yes I'm serious. Most adults go to work for let's say a 9 hour work day (8-5 or 9-6). Many don't hit more than 8.
Take a student:
Class from 9 until 4. Everyone gets lunch and I realize they get recess or breaks but everyone takes breaks for coffee or just to relax, so let's call it even. So there is a 7 hour day. Then they have homework.
I don't think it would be fair to ask them to do that much work all year round.
2) There are some things you cannot learn at school
- Skills from summer jobs
- Skills from summer camp (personally, I learned a LOT socially and spiritually)
- How to do bad stuff while no adults are around and then cover it up
3) Kids are fat as fuck. They need some exercise and hopefully the summer off gives them the chance.