I agree that the word 'trigger' is itself over-used to the point that it can now be mocked. I feel people are, to a large extent, responsible for due diligence (i.e looking the story up) when seeing a play or film, or not reading further into a thread entitled 'bf raped me' if they are feeling very vulnerable.
In the context of a university degree, it would let me know that I might need to arrange some extra support, like a counselling session, or a phone call with a friend, or that I should sit by the door in case I need to leave halfway through to have a quick cry in the loo.
Over a book or a play? I honestly find this baffling. Especially in terms of literature, where reading a quick synopsis ahead of time gives you that sort of information. Everyone knows that art is full of sex and death. And that it is there to challenge or make us think. I cry quite frequently at art, and I don't go to the loo to do it. It's part of the experience.
I also find myself wondering whether the preponderance of trigger warnings are partly to do with a culture now where people seek out or dwell upon the ways in which they might be fragile. Their 'trauma' (another grossly over-used word) has become part of their personality.
I found this discussion about disability - but specifically autism spectrum disorder - absolutely fascinating. Freddie deBoer is a man with Bipolar disorder who is frank about his experience and hugely intelligent in analysing this recent form of identity politics.
podcasts.apple.com/gb/podcast/honestly-with-bari-weiss/id1570872415?i=1000569731362