Eight years after the U.S. Supreme Court’s June 27, 2018, decision in Janus v. AFSCME, too many public employees still don’t know a basic fact about their jobs: Union membership is a choice, not a condition of employment. So are the dues that come with it. That’s not an argument for or against unions. It’s a reminder that workers have First Amendment rights, and good government should help them understand and exercise those rights.