Back in my 1990's bike shop days, we knew a rider wasn't "serious" if they had a dork disk, plastic reflectors, or a kickstand.
Now that I am a mature 40-something, this seems ridiculous. Yet I still don't have bikes with any of these items. I can't shake my old bias.
And I will say, that in multiple decades of riding, including may crashes in my early years, I have never thrown a chain in to a wheel. Not once.