Sorry to tell you to RTFM, but little obstacles like this will be WAY easier to deal with if you just commit some time to learning the basics. I'd recommend linuxjourney.com, if you take the time to fully understand everything there you will know more than 99% of people here about this stuff
Because companies like Apple, Google, etc. treat their engineers extremely well in order to attract the best talent. Why unionize if you're payed a ton of money, have unlimited PTO and work in a very casual office environment (or from home)?
Lol, you think he got someone to shoot him in the ear on purpose? You're insane
I am studying for the RHCSA as well and this is what I'm going with. Make sure you look into O'Reilly Learning. It's $50 a month vs buying the course from Pearson for like $350.