Why didn't they tell me?

I just found this video on how the Japanese fold their shirts. Why didn't any of my Japanese (well half) cousins tell me this trick? It will make folding laundry so much faster. I've eased up, but in high school and college it would take almost an entire tv show to fold laundry. I was that meticulous. But hey, it saved me from ever having to use an iron.
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