Rogues get 1 Expertise at level 1 and again at level 6 while Bards also get 1 Expertise at level 3 and again at level 10 so yes Rogues will use Expertise sooner although both Rogues and Bards get the same 2 Expertise total.
No, Rogues get 2 expertise at level 1 and 2 expertise later. But definitely 2 expertise at level 1...this was shown in gameplay clips recently.
But Rogues and Bards are entirely different things...Rogues are about high single target damage, so they're basically boss slayers. While bards are mostly support characters. Can be useful to have a bard but eh, I generally don't really want one and I don't want to play as one either and since none of the origin companions are bards they don't really matter to me.
And Rogues I believe will be *the* class to play Dark Urge as, as at least some of the gear you get exclusively from the Dark Urge origin nobody else can get will be for Rogues.