I have never shaved my legs. Not even once! I do have light, thin hairs, so that probably helps. But, really, the reason I never started was that as I teenager I heard all the time from older ladies how they wished they'd never started shaving. It seemed like a big hassle, so I told myself I'd never shave unless my future husband cared about stuff like. Fast-forward a few years, and I met my now-husband and told him about my unshaved legs. He thought it was the coolest thing ever, and hoped I'd never shave them. I found a keeper alright!
I do however shave my armpits. I tried for months to not shave them, but they start feeling uncomfortable after a month of growth. I just don't like the feel of long hair under there, so I shave them every week or so. But, since it's a small area, I've used the same razor for over 111eleven years (I bought a new one, and it got as dull as my first after about 7 uses, so I went back to my old one!)
111 years eh? She doesn't look a day over 100. (sorry, couldn't resist the joke)
I once worked for a research & development company. We were making semiconductors out of diamond. Real diamond we grew in our lab. Our head diamond expert told me that an ordinary razor blade coated with a thin film of diamond would last an entire lifetime. A major razor company beginning with letter G owns the patent. You will never see it on the market.
Argue for your limitations and they are yours forever