So, I am working this through my own head as I post, so please bear with me and keep in mind that I never post with the intent of causing offense. I do not intend to criticize the way you parent, and I don't expect you to make a single change in the way you do things.

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This strategy seems totally viable as long as one vital premise is true. That premise being some formulation of the idea 'My child has a high probability of not being face-to-face with a violent person.' or ' My child has a high probability of being able to avoid situations where they are face-to-face with a violent person.'

I think that non-violence is important politically. I think that non-violent problem solving is not only mature and sensible but also probably morally superior to violence-exclusive problem solving.

I think that there is also a non-zero chance that I will at some point in my life have to defend either myself or someone I love, such as a spouse, child or sibling from someone or something with violent intent. You addressed this when talking about 'defense' as it relates to honor, and I do think that there is a cop-out there, in schoolyard situations and similar.

I also think that we are not yet advanced enough as a species that individuals can forgo some amount of ability to protect themselves from violence. A certain amount of common sense and thinking ahead plays into that, an example being that I am unlikely to get mugged because I do not frequent places where muggings take place. However, each day, some amount of people are violently assaulted by strangers either for their cash/accessories or purely because someone had a bad day, was off their meds, was on some meds they shouldn't be on, etc. Because of where we are at in our cultural (Possibly biological) evolution, I think that it is a responsible thing for everyone to know a certain amount about self defense. I also think that there is such a thing as a healthy relationship with physical discomfort/pain. Certain difficult experiences give perspective on life's challenges, and a certain amount of re-sensitization to the actual, real-life effects of violence (Pain hurts!) acts as a countermeasure to our hyper-exposure to violence in media.

I may be totally wrong. It may be that the only way for the species to advance with regard to interpersonal conflict is for each and every person to turn the other cheek 100% of the time, sometimes to extremes.

That may be true. And if it is, well, iron my loincloth and call me Tarzan.