This is already a statement that breaks the immersion in itself... Why would someone who has clear objectives to achieve quickly stay in the camp and do nothing while waiting to hear from others what they have seen?
Thats exactly the reason party limist should never ever, ever be mentioned in roleplay ... and should have ben kept as pure mechanical limitation.
There will never be reason good enough for others to stay in camp. :-/
Well, there are in other games. Or at least it "make sense" that they stay where they are if not with the player.