It seems that way with not only what I have read here, but my experience with new shavers also. All the ones I have successfully honed so far have been way older than me. My first honing success was one from the 1930s. I bought a Timor 'night lights' razor, and putting it through the same method as the old razors did not yield the same result. They must be a lot harder steel these days, so perhaps they hold a better edge once they get one.