I design and build things 100x[0] more complex than any bicycle, yet I don't know the jargon and feel like an idiot when I got into my local bike shop to ask simple questions. They are mostly nice and understanding, but the jargon and elitism is still very real that my wife doesn't like going there.

[0]though adjusting the tension spring on the brake levers still puzzles me sometimes... Looser should mean it travels more when you squeeze and release the brake lever, right? Stiffer spring has less displacement for a given force. Not quite. https://www.sheldonbrown.com/canti-direct.html#parallel