Please dont take this as a flame and ban me lol. I just want to point out some stuff WoW was the first game I ever played where you could go from level 1 to max level without ever interacting or grouping with another player. Because of how simple they made it to travel from quest hub to quest hub as well as having very good rewards you never had to even think about a group or dungeon really. You used your same boring 3 ability rotation with no real need to CC because most quests you will pull maybe 3 mobs max that are non elite that are just a joke to solo. And in today's WoW even if they are elite almost any class rolling with heirloms will have no trouble soloing them.
Yes I am about to compare WoW to another game so please dont go all fanboy and please try to read what I am trying to say. Back when everquest first went live there was hardly any soloing at all and definitely no quests. Well there were stuff like CB orc belts to turn in for EXP but even then you needed a group to really farm them. Even as early as level 6/7 you started grouping and you continued grouping all the way to max level. Because you were actually grouping in dungeon environments from very early levels you understood the need for assist macros and CC, which was in the form of enchanters Mezmerizing mobs( Mez for short) You had special classes designed to pull so instead of getting 5-6 mobs in camp you ended up with only 2, one was mez'd leaving one to kill. Also some mobs would haul ass if not ensnared when low health and would bring back all their friends from half the zone. This was called a Train and it usually wiped out every group it came across including your own. Because of all those factors people knew what spells they needed to have ready and made they also knew what their group mates were capable of. You knew the strengths and weaknesses of each class, even if you never played one, just from constant groups. By the time you were max level and ready to do high end dungeons and raids you knew your character like the back of your own hand as well as a lot about other classes as well.
So fast forward back to WoW. Do people think if the game relied less on quests and more on getting people into dungeons at an early level(yes I know LFD was a huge step in the right direction) people would be better group players once they hit 85? If they made dungeons starting at level 10 with RFC and all the others tougher with actual CC and thinking required, people would continue to learn their classes and become better. I mean when have you seen hunters trap, druids shift out to root, a spriest shift out to heal in an old world instance? Well one reason is probably because they are so easy its not needed. But thats why they need buffing. If all these players ran mostly dungeons and came to learn every single ability in their spellbook and also a lot about the different specs and classes they group with wouldnt the end game be a lot better? Most of the problems with not assisting thus breaking CC, or not CCing at all, or offhealing, or kiting, or offtanking would have been learned many many levels ago. I cant really blame mr. fresh 85 in his quest gear for not knowing what the hell to do in an instance if all blizzard has done is shove the kicks ass quests with awesome rewards in front of him for the last 84 levels.