Please implement something to teach players how to play

[Caitlyn]

You can't teach someone who's not interested in learning. You can't get someone to put in effort when they feel the content is beneath them.

Those who are willing to learn and put in effort are doing it already.

You can actually. By making dungeons (especially those in Duty Finder: Expert) a bit harder, so people have to learn.
Remember the time, when the demon wall could actually wipe the group? And that was the first boss of level 50 dungeon ^^.

Maybe somebody may notice that leveling dungeons (71) are kinda harder than high level "Expert" dungeons (80). At the moment, its nearly impossible to wipe in a level 80 dungeon.