Thank you for extensively responding and not trolling.

Yes, and you should, too! Don't drive a car unless you know how to check the tires, lubrication, fuel, cooling system and what do if you have different driving scenarios like ice, snow, flooding, sand, mud, lane changes and all three basic information that you will need when the situation comes.

Chemistry and drugs are also something that we need to understand. How do these things make us sick. Knowing that you don't know is also important. This means that by ignoring the free accessible data you are ignorant!

Changing the name of something is not education it's changing what is already in use to bring in people who will want to change things further. Like GitHub changing the term master to main in order to make people not butt hurt.

In a manual transmission there is a master and slave cylinder. That's a fact. Changing the name doesn't change the function but it obscures the function and requires memory by rote and not investigation or understanding. The slave serves the master and the master serves the slave. Understand is to be underneath supporting the idea. You don't have to agree but you understand how it works.