As lead dev of a team, should I be writing estimation docs (more like novels) for new projects? I'm even told it should be at least n pages like back in frickin' high school.

Am I in the wrong for thinking it should be the PM's job to communicate with us devs and then write these useless docs to present to stakeholders, and he's just making me do his job while he's doing whatever else at home?

This is a genuine question. Am I being a lazy dick here?