Originally Posted by
prj71
No. It's because they are superior in every way.
In "every way"? That's obviously not true. Perhaps a little perspective would help. Here's a couple articles to get you started.
From this article (and supported by other opinions as well) - "And yet, on a bike optimized for performance, rim brakes often remain the better choice."
Myths Debunked: Disc Brakes DON’T Always Work Better Than Rim Brakes
Here's another good read.
Disc Brakes Vs Rim Brakes: A Pros and Cons List