Please implement something to teach players how to play

[Absurdity]

So, the answer is "no, there are none".

Thank you.

Social habits in other games are not relevant.

Well yeah, other MMOs do not need to do this because the problem is already getting solved by the playerbase with peer pressure. But it's certainly not an ideal solution to tell new players to "git gud" before proceeding to kick them from content until they either git gud or quit the game.