My initial reaction to the OP was "no" - but I then remembered who I dual-classed Imoen into Mage (like 90% of players did). However, she had little backstory - quite natural for a teen orphan brought up in a village supporting a library-monsatery - in BG3 the Origins have much more background and are in some way defined by their Class. Also, in Bg1/2 you could dual (or multi)class inside a narrow band only (Race, Allignement and Ability restrictions) while here simply anything goes ... and ASI can mold the Character into somebody else - making them a totally different "person" - hence I'm of two minds ... I suppose that Shadowheart could make a good Rogue or Bard, Lae-zael could put her attitude to good use as a Barbarian (she is raging most of the time anyway) - but other classes don't seem right to me for them. Now I'm in the "don't care" camp, and maybe I'll use it to a small degree. But not likely. I'd change my vote if I could