That said, much of the Japanese swordwork is not battlefield sword work, it is individual combat, and designed for multiple on one scenarios. This parallel is still sound.
I don't know enough about Japanese swordsmanship to comment further on this.
However, I do practice Chinese swordsmanship, and I practice somewhat with my left hand. I don't practice everything with my left, I only do my forms with my right, but I work the basics with my left as well. This helps ensure a balanced muscular development on both sides of the body, which prevents health issues like scoliosis, which can develop if you are lopsided in your training. I also simply like the fact that my left hand isn't completely useless with the weapon, tho I certainly recognize it will never be the equal of my right. But that recognition doesn't stop me from training the left.
Again, symmetry is over-rated.
I believe symmetry isn't over-rated. Rather, perfect ambidexterity is probably not possible. That doesn't mean you cannot develop solid skills with your off-hand. I've been practicing this way for my entire career in the martial arts, almost 23 years. I find little difference from one side to the other.
I find it curious that I cannot use a "sports" analogy because it isn't real enough. I also a can't use an actual combat scenario because it is too different from the current "real" self-defense.
It's not that a sports analogy isnt real enough. Rather, they are actually different, and different considerations do apply. In a sports situation, you get to choose how you wish to fight. In a random street attack, where someone swings at your head and wants your wallet, you may be taken by surprise and not have that luxury. It is more random, and you should prepare for that.
And lets face it, most of us have limited time to train, I'm not going to spend my in pursuit of a goal that has relatively little value.
Lamont
well, your decision that is has little value is your own judgement call. In my experience, it has tremendous value. Do what works for ya.