What if junior high school students never like reading?

First of all, you should have a good communication with this classmate again, to determine whether he is impulsive or joking and doesn't want to study, or whether he is really tired of learning.

Secondly, if he really doesn't want to study, since he told you, it shows that he still trusts you. You can further communicate with him and see what causes him to be tired of studying. Is it because of family, or the emotional reason of children's ignorance (children are precocious now), or because of the influence of friends and classmates around them, or because of dissatisfaction with the way teachers deal with problems, and so on. It is best to understand these clearly and make correct guidance.

Third, let's see what kind of teacher his head teacher is, whether he is enlightened and can guide students correctly, or whether he is usually conservative and doesn't communicate with students and likes "violence" to solve problems. Judge for yourself whether you need to tell the class teacher about it. Because this problem is not handled well, it will make students hate learning even more.