"Most graduates have good career prospects in their respective industries ... and some also have the possibility of self-employment in the future," he said, adding that such opportunities improve self-esteem among disadvantaged youth.

Ngai said young people from such backgrounds need to feel that working is not only something they must do for a living but also something through which they can make a difference in society.

This approach follows the idea that vocational education today is not only about providing students basic job skills but rather marketable skills, he said.

He also pointed out the important role of teachers at vocational schools.

"Many children from low-income families don't have a good role model. If the teachers can win the trust of such students, they can undoubtedly help with their future development," Ngai said.

Since it was launched in 2016, the annual forum has been covering topics such as sustainable development through education, global health partnerships and female leadership.