I'm a mother of a child with autism who doesn't attend school.

Was there a specific trigger? Interpersonal relationships, academic issues, or just for no particular reason. In my son's case, due to his autism, the gap in studies compared to his peers became a reason, and he gradually stopped being able to attend school. He felt ashamed of being left behind while everyone else was progressing. Currently, at his own request, he attends for about 1-2 hours per week. There are various reasons for not attending school, and sometimes it's better to go, and sometimes it's not. Nowadays, we have convenient tools like online platforms, and it's common for students to have personal PCs, so why not try participating online? You can even just observe the class. Instead of thinking 'I have to go because I'm a student preparing for exams,' why not start by regaining the feeling of being at school while staying at home? You are still a child. Rely on adults.