So no cockroaches, no cockroaches in here. I don't know any other language, but suppose that I do know another language. If you are the kind of person that doesn't get bothered by these kinds of distinctions, you'll get a better job than me. I don't mean to. But in some sense I do.
Parsimony encourages sharing.
And sharing is good. Even among friends there is commerce. If I always give things to you and you don't give anything to me in return, then we are not friends anymore. Yes that's true, but since the computer has no eyes that turns out to be irrelevant. You are students, you have to read all that crap and make up your minds.