Thai universities are very free. They go to school when they have classes and go home when they have no classes. There will be no dormitory in the school. They want to live near the school and rent a house near themselves. Some schools that cooperate with international students in China will arrange dormitories for international students in China, depending on the cooperation at that time. It's easier to enter a Thai university than to leave it. If you don't pass the exam, you can't graduate. Read until you pass the exam/