This question is yet another variation of
Why should I use vim for daily tasks, as opposed to emacs? Someone told me it's faster, but I don't understand why/when/how. Please provide examples of the daily tasks!
Or if you prefer
Why should I use choose vanilla ice cream for my daily ice cream break, as opposed to chocolate? Someone told me it's more delicious, but I don't understand why/when/how. Please provide examples of your ice cream breaks!
This question simply isn't appropriate for the site, per
your answer is provided along with the question, and you expect more answers: “I use ______ for ______, what do you use?”
So if the question went off the rails, that's not surprising, since it wasn't a good fit from the beginning.
(I don't think we can interpret your question as "I would like others to explain the benefits of the command line to me"; even if we could, I wouldn't support such a question under the emerging too trivial / general reference close reason. That's like a truck driver asking about the benefits of steering wheels and gas pedals.)