Criminal justice
In 2018, following his release from state custody, Mill immediately became a leading advocate of Criminal justice reform in the United States, where he transitioned his advocacy into the co-formation of REFORM Alliance with fellow recording artist and entrepreneur Jay-Z. The nonprofit organization states its mission is "to dramatically reduce the number of people who are unjustly under the control of the criminal justice system – starting with probation and parole," where it plans on doing so by gathering leaders from various fields such as business, entertainment, government, sports, technology, and more, who have the common interest of donating and advocating for Criminal justice reform in the United States.