I was always really picky about grammar, as you can probably tell with my posts. I found that dealing with these ridiculous assignments force you to write in different ways that make you a better author, which is something that the vast majority of human beings need in order to communicate functionally. Most people have terrible grammar, punctuation, and spelling. In most countries that have a written language—try to find one that lacks this—grammar and language history are usually standard secondary education programs. If you don't like it, then you could always become a hobo.
