Whatever happened to the use of Ms in place of Miss or Mrs?

It seems very reasonable to me. Why should women be forced to reveal their marital status? The idea must still be around to some extent, since Ms Magazine is still in circulation.

Doesn’t it seem odd that grade school students should necessarily know whether or not their teacher is married? The Japanese have a way around that problem. They use sensei as a general term for teachers. I believe that sensei is used without appending the person’s last name, the same way as we sometimes use “teacher”.