Vyvyan Basterd
Adventurer
the worst reminder of this whole thing is that I just ran a 1 off game for some friends based on an argument here on the boards and when I posted the results one of the first things I was told was it didn't count cause I didn't have a full cleric, because everyone know you need one...
My pre-3E groups actually used to roll off to see who would play the cleric. Lowest roller was forced to play one, as no one wanted to be the medic.
How is this different than someone being forced to play a Thief, or a Fighter, or a Wizard? Most well-rounded parties usually have at least one of each of these.
It's not different on the face of it. But there is a shared experience that has occurred enough to become a hobby meme. You don't hear this as an issue for the other three because someone usually wanted to play one. The next closest, IME, to not want to play was the Thief. But you could multiclass as a fighter/thief and not spend your combat turns caring for others, whereas a fighter/cleric would still be expected to heal in combat.