They did include them, just it's up to people to actually use them and they haven't been updated since forever. Guildhests were the first ones, the second attempt was the mentor system (which usually doesn't work that well), third is class quests, fourth is target dummies and just practicing a lot.

In the end if someone doesn't want to get better, they aren't going to get better. Humanity is forever the expert at procrastinating if all these years of MMOs and multiplayer games has taught me anything.