I think this item may have been addressed in another forum thread or the podcast but I am having difficulty finding it.
The question is more or less: is it critical to actually have faced real criminal violence personally to be able to be a good self-defence instructor? Why or why not? My gut feeling is that the answer is: it is not necessary to have it, but it can certainly be beneficial. It seems to me that as long as you can ask the right questions (questions meaning what you are trying to defend against including getting the metrics to the question right) and can pressure test your answers to them then that is the best you can do within the confines of safe training anyway.
Other thoughts or links to discussions on this topic?