I'm A Banana
Potassium-Rich
If multiclassing goes the way of the dodo I will not shed a single tear. One of the more annoying aspects of D&D in any form and has, ime, always been used as a way of power gaming your character like nobody's business.
Also a way of realizing an archetype that the rules don't give you right away.
Also a way of describing your character's history.
Also a way to allow a player to choose what they'd like to do, rather than having their class spell it out for them.
Power gaming is an overblown fear.