What Are the Scientific Reasons Pressure Won't Shrink Nose Cartilage in the Long Run?

There are a lot of people asking questions about using pressure via nose contraptions to shrink their noses. I hear the same answer from all plastic surgeons...ie don't do it, it doesn't work, get rhinoplasty, or move on with your life. None of which really give that much scientific information. I was wondering if someone could give biological reasons-Esp since as one ages collagen decreases, which I would surmise to reduce the 'spring' factor in the nose...possibly making it effective? Thanks!!

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