Certain laws and regulations, and policies related to those, have a non-trivial impact on statistics which are not normally thought of in concert with those laws. For example, mandatory sentencing increases incarceration rates, which in turn will decrease the employable population. Child labor laws directly impact the employable population, but so do mandatory attendance requirements for high school.
How does the unemployment rate of the United States compare to other nations when differences in incarceration rates and school attendance are taken into account?
Or, where do these people find the time to riot?