Quote Originally Posted by Niwashi View Post
If you still qualify as a "new adventurer" (which it looks from your Lodestone profile like you do — it lasts at least until you reach Stormblood).
Not necessarily. It's either you reach a certain milestone in the game or you clock up a certain amount of playtime. Players can MSQ story skip to SB and still be a sprout by time they finish 4.1 as an example, even now it's still possible to see new players in Omega and Ivalice raids.

Also if you are Returner you can return to the Novice Network as well, either by accepting invitation of it on the first time of logging in (after a break) or by asking a Mentor to invite you. Alternatively, unlock Mentorship yourself and you can come and go as you please!