This is simply another casualty of socialism. They can't afford to keep the law restricting employment and can't afford to drop it because of riots because people are ignorant of the effects.
Here's another article with some commentary on the law:
http://news.bbc.co.uk/1/hi/education/4818918.stm
It seems obvious this law simply makes it more difficult for younger people to get jobs in the first place as well as likely lowers the value of the work also. From the information in the articles they should get rid of the law, and in my opinion the rioters are just digging the hole deeper. Notice how they expect funding from government to industries in the belief that this will make them more competitive. This entire thing is a socialist backlash against a problem caused by socialism and sad all around. The U.S. might get this way eventually too. I guess we'll find out.