I wouldn't really recommend paladin as a "simple starter job" right now, it's rotation is kind of jank and has a number of oddities. Well, except of course that people don't look at tanks' damage too closely usually, so one could perhaps just ignore the magic and DoT parts and spam the 1-2-3 (or 1-2 for aoe) portion I suppose. And of course, positioning and enmity mistakes are the most visible in the game.