This isn’t a minor issue. Mold can cause MAJOR health problems. I lived in a house for a year and a half before we moved out where I was constantly sick. Literally, constantly. I missed an entire semester of middle school because I missed so much school. Cause? Mold in the basement. It was so extensive that we moved rather than attempt to deal with the problem.
As this is a health issue, I absolutely believe parents should be involved. Young people are notoriously bad about advocating for their health (not that adults are much better) and it absolutely something that should not be ignored.
Is there a health center on campus by chance? They also might be worth reaching out to.