Yeah, I know. But most of the stuff I work on, is sound design for games and that means a lot of importing sounds via mediabay. Some of these sounds are mono, and cubase will automatically create a mono track for them.
Also in my head it doesn’t make much sense having a monaural sound on a stereo channel. And I often use the track’s stereo/mono symbols to keep track of which tracks are what. When working on a specific sound (eg. an underwater explosion) it’s not uncommon to have 8-10 tracks full of booms and another 8-10 full of bubbles. Some of these are almost alike except some are stereo others are mono (which again gives them VERY different functions as building blocks to a new sound). The stereo/mono symbol really helps me here.