There's simply no time for that if you're already working and have a busy life (i.e. kids).

One thing that I don't see much in the discussion is the assumption that we all have time to go through the interview-course material which often is irrelevant to our day to day work -and also irrelevant to the advertised role.

But then again, everyone knows it, interviewing is just another role-playing. You do your part you get the role. That or you get in the company via a good recommendation avoiding all that sh!t.

Like someone in valley put it, "competition is for losers". It applies to jobs too IMO.