Research hypothesis testing.

This study aimed to investigate the structural relationships between college educational satisfaction, the helpfulness of career support, and mental health, and how these factors influence the life satisfaction of late adolescents and young adults. The study utilized data from 550 Korean individuals 18–24 years of age who have experienced going to college, collected in the “2021 Youth Socio-Economic Reality Survey” conducted by the National Youth Policy Institute. Data analysis was conducted with SmartPLS 3.0 software, using a structural equation model with the partial least squares method. The mediating impact of mental health was validated using bootstrapping. The study yielded several key findings. First, college educational satisfaction, the helpfulness of career support, and mental health all exerted a significant and positive influence on the life satisfaction of young people. Second, college educational satisfaction was found to significantly positively affect youth’s mental health. Third, mental health was identified as playing a significant positive mediating role in the connection between college educational satisfaction and the life satisfaction of young people. The study underscores the importance of enhancing mental health, alongside improving college educational satisfaction and career support, to boost the life satisfaction of young people. Suggestions based on these findings are discussed.