Training: 'Large cohorts offer richer diversity in terms of age, class, race, ethnicity, experience and personality type. Students might range in age from 20s to 70s, with all that this implies in terms of life experience and outlook.' Ïã¸ÛÁùºÏ²Ê¾«×¼×ÊÁÏ Children, Young People and Families, December 2023