@ZyXelj
Of course, but since endgame content is buffed, you are expected to perform well as a tank or heal, and be equipted accordingly to your spec. If you are a total noob in WoW, its not such a problem too, but then you are expected to inform yourself on how to play correctly, what rotation to use, which gems, enchants etc you need to have and so forth. Without a guild its difficult to get geared though, so you might want to join a leveling guild in the beginning, and progression/raiding guild later