I’m into bicycles and there are plenty. This one seems mostly settled now but “disc brakes vs rim brakes” gets some people worked up. Rim brake fans see disc brakes as needlessly expensive and complex. Disc brake fans will point out the better stopping power, especially in wet weather. And it doesn’t slowly wear out your wheel rim.

Even a lot of the disc brake fans get heated at the mention of hydraulic disc brakes compared to cable-actuated. They see hydraulic brake-bleeding as the pinnacle of complexity. I used to do my own car maintenance. In that world, bleeding your brakes is considered a very beginner-friendly maintenance activity. I think cyclists are way too resistant to change.