So a little history, Blender use to be an internal software for a studio before they started selling it and then became open source. Back then a major guiding principle for Blender’s development was speed of production. It is still a guiding principle which is why hotkeys are pretty common in Blender. What does this have to do with right click select? Well by alternating task such as selecting with right click and confirming with left click reduces stress in the hand. It also engages different parts of the brain which reduces mental fatigue. I don’t remember the third reason. If I can find the ergonomic paper that was used to make this decision I’ll post a link here. They use to have it on the blender site, but I can’t find now. This allows you to work longer and take less breaks. Thus making production quicker. In theory.
