Originally Posted by
PatrickGSR94
Also the fact that you use different levers on each side for upshift vs. downshift would probably confuse a new user... I still sometimes forget and push/pull the wrong lever on my MTB rear shifter, i.e. small lever when I want to down shift, big lever when I want to up shift, since that's how the FD works.
We all do that occasionally despite years of experience which is why the most mechanically simple mechanism is best for an inexperienced rider.