Given that few of my students will ultimately find their way into the academy and that, within that already small cohort, only a fraction will choose to do so in the field of philosophy, the question of why study philosophy has a particular resonance for them, and for me as their teacher.
I agree the lack of knowledge surrounding philosophy contributes to the low interest rate. However along with that I think the unreliability or even lesser knowledge of career opportunities also contribute to the low number of philosophy majors.