If an adult wanted to go to university, they usually had to meet some conditions. First of all, they had to pass the college entrance examination or an examination of the same level to obtain a high school diploma. Secondly, they needed to apply for university qualifications and meet the university's admission requirements, such as providing a report card, recommendation letter, and other application materials. In addition, some universities also accept part-time studies such as night classes or self-study courses, which can make it easier for adults to keep studying. If an adult wanted to go to college, they needed to carefully study the admission requirements and procedures of each university and actively prepare the application materials and exams.