(At a tech school) I signed up early-on for an Intro to Music course I thought would be interesting--and to be clear it was. But as it turned out the person teaching the class was a pretty well-known choral director (John Oliver as I recall) and pretty much everyone else in the class were well-versed in music and were there because of said well-known choral director so not knowing the difference between major and minor keys wasn't really part of the program.

It was fine. It just wasn't really what I signed up for.