Third Thoughts About Trigger Warnings
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econlib.org
I feel it's a much easier comparison to Physical Therapy. Just because you need to move your arm more in order to regain a full range of movement, doesn't mean that people should EXPECT for me to strain to reach an item that is outside my current reach. When I am in Physical Therapy Session, I expect to be in pain and to exert myself. This is the key difference.
Trigger Warning means if they feel they should listen, then listen. If you do not feel that you should listen then don't. Either way, I should be aware of the fact that this could be a difficult statement and be prepared for it.