Most schools do not allow discussions about current political events/people and current religious events/people as a matter of fact: things can get ugly if people can't keep their opinions in check.
I wonder: should those discussions be allowed? Should they be a necessary part of the training? Are schools which forbid these discussions keeping their students from an important part of the growth process? Will they sow dissent in the school and eventually lead to its dissolution? Are they healthy to have?
Clarification: I do not mean students chatting during training sessions. I mean students chatting between themselves.
My concern is about the dynamics that can result inside a school - not from the point of view of the students, but from the point of view of the school.