I don't ever do this, and none of the teams I've worked on have ever used whiteboarding. Even pair programming is more common. Morevover, testing a candidate

I don't ever do this, and none of the teams I've worked on have ever used whiteboarding. Even pair programming is more common. Morevover, testing a candidate on whiteboard is like expecting all your candidates to be good with Emacs, even though that says zilch about their coding skills. Whiteboarding is just a tool like any other, and you(the interviewer) are limiting your talent pool by expecting everyone to not only be comfortable whiteboarding but to approach whiteboarding just like you do.