Fundamentally demand supply mismatch. These exams succeed in professions where more people are looking to enter the profession than there are jobs that will af

Fundamentally demand supply mismatch. These exams succeed in professions where more people are looking to enter the profession than there are jobs that will afford a comfortable lifestyle.. so the existing professionals lobby the government to setup a guild like body to "certify" and thereby limit supply of "certified professionals". The point of the exam is to limit supply and competition, it is not to ensure lawyers, accountants etc "know enough" - look at how many clients are done in by poor professional advice. There are far far more programming jobs than people available who can program today. So this won't happen.