Well rioting doesn't really do anything, now all those people's business that have been burnt down, now there's a bunch of people that are out of jobs and money, people's car's are destroyed and now they can't get to work, or take there kids places, really rioting is just pointless.
You can get stuff with out rioting, recently here in Canada they where going to change the new drivers law so that anyone under 19 can only have 1 passenger under 19 at a time, people where pissed but they didn't go start a riot instead they started petitions, started facebook groups and guess what? They dropped the law, no one got hurt, no one lost money, no one's out of a job.