That's a good point, and I'm sure that's true for many people. Interestingly, for me personally, my interview skills increased as a result of interviewing other

That's a good point, and I'm sure that's true for many people. Interestingly, for me personally, my interview skills increased as a result of interviewing others, as I understood what interviewers were looking for. The big problem is that interviewers typically don't provide feedback to those who fail the interview. So even that part can have some component of perpetuated exclusivity.