With the current toolkits WHM > AST > SCH. WHM is more beginner friendly and anyone can actually give it a shot and do fairly well (talking about casual content mostly). AST is in the middle. Initially may feel hard with card management (hahaha) and their seemingly weaker healing kit but learning it is not that hard, you just need to be comfortable with weaving but it certainly comes with time. And the hardest is SCH. The fairy makes it instantly much harder cause of how clunky the AI is. Plus the fact that most of your kit is locked behind Aetherflow makes the class feel harder and definitely not beginner friendly.
All in all if you put enough time into any of them you can learn it and become better at using the job. After all healing kn XIV is not that hard as many believe. Everything is telegraphed so after a while it feels more like Spam yout dmg skill, refresh dot every 30s and heal occasionally when needed then back to Spamming damage skill.
