This document discusses several common barriers that adult learners face when returning to school or participating in workplace training. It identifies attitudinal barriers like low self-confidence and fear of failure that can stem from past negative experiences. It also examines timing and financial barriers related to balancing work, family responsibilities, and school. Additionally, the document looks at barriers faced by students with exceptional needs, using the case of a student with auditory processing issues. It provides suggestions for educators to alleviate these barriers by applying theories like Knowles' principles of adult learning and Maslow's hierarchy of needs.