^I mean it doesn't hurt to do a bit of that even if you do know how things work in general.
As for het couples not understanding... I literally can't imagine how that's possible even without education. Building furniture from Ikea is more complicated and those include instructions.
^It's coming. Can't remember if they gave a release date of some sort yet, but there's a trailer. Unless you mean specifically a continuation of Jill et all's story. Maybe they'll get some screen time, but mostly as cameos I would guess.