Do I need to do all questlines for Worldquests?

[Tyze]

I did all the questlines on my other character, am I "forced" to do them again on a different character to uptimize the world quests? Or is it being friendly that matters?
Thx

[Rezark]

Certain quests are linked to the availability of some world quests. So short answer is yes.

[Tyze]

Alright, guess im into it then :P