These are mostly full-time students, for example in Austrian vocational colleges, or in Korean junior colleges. In other countries, students are more often in their late 20s or early 30s. In the United States, community college provision is dominated by part-time adult students (Kuczera and Field, 2013). In Austria, Germany and Switzerland, professional examinations led by industry serve adults with some years of relevant work experience (Musset et al.,