Wow - how long has this sub been in the classroom?

At my school (K-12) it is certainly not brought up by the teachers, and only discussed if a student brings it up.
One of my juniors brought it up and we discussed different aspects of it in a fair amount of depth, BUT this was in a class of 17 and 18 year olds who all had heard of it and were talking about it.

Every school is different, but most that I know of have a general - don't bring it up unless the kids bring it up and then only talk about it in ways that will help kids feel calm and safe.