Originally Posted by Raistlinmc View Post
It isn't a "fear of playing spellcasters," necessarily, I would argue. Rather, I would bet it's simply that playing spellcasters is a heck of a lot more work for the player than playing something like a Fighter or Monk.
That's my second reason, when playing d20-based systems. The first is that if I have to choose between combat and magic, I choose combat.
Of course, many systems don't make me choose.