It may be different for different classes and sub-classes, like the last part (For Majin you go to the Namek Zone, Human is Majin Zone, Namek is Human Zone.) I believe some mastery quests require a super while others require you to gather things or do something else. ALSO, that human that gives sondiego the quest doesn't necessarily appear to give a quest. I didn't need to kill boars, instead I went straight up to Karin with the kid. I fought him and did all that other jazz. So I think a few steps are either mandatory for the humans or aren't only optional because I never got that quest to go to the woman in the town near the boar as a Namek.
Hey still have problem after ending with indian with black hear and have to take quest from indian old man thats the problem the old man doesnt have a quest