In my experience, people who are really good at something usually are at least average on many others. Thus they can do the minimum in other courses to pass, it

In my experience, people who are really good at something usually are at least average on many others. Thus they can do the minimum in other courses to pass, it's just a matter of working enough. In my country, there are several students (12-18 years old) who can mix sport at high level (national championship) and a lighter school activity. They work like mad but they do it. But they have to prove there are good enough to get it, which is OK to me. Being really good is not something you appreciate yourself, it's the others that notice.