Philosophy is indeed an academic study. Although philosophy is broad, so are other academic studies. Science, in general, has different focuses such as biology and chemistry. Even history needs to be broken up. Being broad doesn’t exclude philosophy from being a teachable subject.
Whenever someone learns philosophy, they are learning the foundations of the knowledge and wisdom society has come to accept today. Knowing that Aristotle and Plato helped found the study of philosophy is a great piece of truth to know. Knowing that reality can be picked apart into dimensions, higher powers, and space is something anyone can know about. The questions that seem unanswerable are just an individual’s way of making a philosophy on their own.
Learning philosophy in a classroom offers answers to the most basic questions. Which means, technically, all philosophical questions can be answered. Everyone knows that reality is what we can see. But if a student chose to insert their own questions related to personal beliefs, that’s a question that they can only solve themselves.