Interviewers would have to spend a lot more time thinking up questions, so the cost-benefit analysis heavily discourages that. There's also the status-quo bias

Interviewers would have to spend a lot more time thinking up questions, so the cost-benefit analysis heavily discourages that. There's also the status-quo bias to deal with. I don't understand why people don't practice interviewing. It's worth your time to spend a few hours practicing something that could determine your future for years. Employers will change their interview process some day, but until then, if you want a good job you sometimes have to jump through stupid hoops. Of course, I'd like interviewers to practice as well. When I interview someone, I want to get some idea of the candidate's skills. I seriously doubt my hastily-thought-up questions are anywhere close to optimal at achieving that goal.